Indoor bike trainer is a kind of equipment which provides cycling training for professional and amateur riders by simulating all kinds of real situations that may be encountered in outdoor cycling with technical means. Indoor bike trainer can be divided into wind type, fluid type, magnetic type, direct drive type, roller type and smart type according to the different resistance devices in the syst
Primary Lithium Batteries are batteries that utilize lithium metal as the negative electrode, with its matching positive electrode material being either oxygen, monomeric sulphur, metal oxide or other substances. Electricity is generated through the corrosion or oxidation of lithium metal, which, like other dry cell batteries, is disposed of after use and cannot be recharged. The lithium metal use
Vials are bottles or containers made of plastic or glass. It is generally used as primary or secondary packaging material to store various medicines in powder, granule, or liquid form. Highly sensitive drugs can only be stored in vials to protect them from the external environment. Plastic Vials are small plastic containers, especially used to store medicines and chemicals that must be protected f
Biaxially oriented polypropylene film (BOPP Film) is generally a multi-layer co-extruded film, which is made by co-extrusion of polypropylene particles to form a sheet, which is then stretched in both vertical and horizontal directions. Due to the orientation of the stretched molecules, the film has good physical stability, mechanical strength, air tightness, high transparency and gloss, toughness
High intensity interval training, HIIT for short, is used to practice cardiopulmonary function, impact speed, and its fat reduction effect is obvious. The principle is to improve the use of oxygen, thereby increasing resting metabolic rate. This special training method has been popular in Europe and America continent since it came out, and is very suitable for the modern life style.
Mainrailway electric locomotives, industrial and mining electric locomotives,electric drive diesel locomotives and various electric vehicles, such asbattery cars, urban trams, underground railway electric vehicles, are used fortraction motors called traction motors. The traction motor is the main motorthat drives the wheel shaft of the rolling stock.
Anelectronic visa is stored in a computer and is linked to the passport number sono label, sticker, or stamp is placed in the passport before travel. Theapplication is done over the internet, and the receipt acts as a visa, whichcan be printed or stored on a mobile device. E-visa application, payment, andapplication decisions are all conducted through the Internet. E-visa serviceuses biometrics, s
PETG,glycol-modified polyethylene terephthalate, is a copolyester that is a clearamorphous thermoplastic. It has good viscosity, transparency, color, chemicalresistance, and resistance to stress whitening. It can be thermoformed orextrusion blow molded very quickly.
A material that responds with very highresistance to the flow of electrical current or totally resists electriccurrent is called an insulating material. In insulating materials, the valenceelectrons are tightly bonded to their atoms. Insulation on an electric motorprevents the interconnection of windings and the winding to earth. Insulatingmaterials are characterized not only by excellent electric
Prescriptiondrugs refer to prescriptions issued by doctors who have the right to prescribe,and drugs purchased from hospitals or pharmacies. This drug usually has sometoxicity and other potential effects. There are special requirements for themedication method and time, and it must be used under the guidance of a doctor.
Vitamin supplement is a dietary supplement that contains vitamins and can provide the human body with the nutrients it needs. Such preparations can be obtained in the form of tablets, capsules, powders and so on. To healthy people, most scientific evidence shows that vitamin supplement cannot prevent cancer, heart disease or other diseases, so there is no need to supplement regularly. However, cer
Children\'s furniture is mainly furniture used in childhood as the name suggests. Children\'s furniture is not a scaled-down version of adult furniture, which have their own safety standards. Children\'s furniture pays more attention to safety, environmental protection and harmlessness than ordinary adult furniture. In addition, Children of different ages have different needs, which can be divided
In orderto identify parts, cartons, pallets and shipments, manufacturers in variousindustries must not only ensure the speed of the production line, but alsolabel, encode and mark various products and packaging systems. Modern packagingis marked, coded and printed with batch numbers, barcodes, QR codes, serialnumbers and labels, or labels or marks directly printed on boxes and pallets offinished g
Asa commonly used writing tool, fountain pen is invented in the early 19thcentury. The tip of the pen is made of metal, and it is sleek and flexible towrite, quite smooth. There are obvious trademarks and models on the pen cap oron the surface of the pen tip. A fountain pen is a nib pen that, unlike itspredecessor, the dip pen, contains an internal reservoir of liquid ink. The pendraws ink from th
Earlychildhood education refers to the education received by children from infancyto the pre-primary stage. Scientific research shows that the best period todevelop the potential of the brain is 0-6 years old. Early childhood is acritical period for the development of intelligence in life. With the progressand development of society, people pay more and more attention to the qualityof human produc
SmartPOS (Point of Sales) machine, also known as micro POS machine, is a new conceptcompared to the traditional POS machine. Its main functions include scanningTWO-DIMENSIONAL code and swiping card, card coupon distribution, self-serviceordering, group purchase verification, online booking, membership management,fine management of customer orders combined with back-end CRM system, big dataanalysis
Gum baseis a solid substance that is non-nutritive, difficult to digest, insoluble inwater, and easy to chew. Generally speaking, it is made of rubber, resin,filler, wax, emulsifier and antioxidant. Resin is an important part of the gumbase, providing cohesion or strength for it. Resins ingum base are mainly divided into three types according to product technology:rosin esters, hydrogenated rosin
Mining is the technology and science of mining mineral resources from within and on the surface of the earth's crust. Mining in a broad sense also includes the mining of coal and oil. The mining industry is an important raw material industry. Metal ores are the main raw materials for the smelting industry, and non-metallic ores are important chemical raw materials and building materials. Mineral r
Melatonin, also known as melatonine, aprotinin, pineal gland, whose chemical name is N-acetyl-5-methoxytryptamine, is a kind of amine hormone that mainly produced by the mammalian and human pineal gland.
Inrecent years, with the deepening of economic globalization, the ties betweencountries have become increasingly close, and trade exchanges between eachother have become increasingly frequent, which has greatly increased the demandfor air cargo. In addition, with the gradual improvement of public livingstandards, more and more people begin to travel abroad to meet their spiritualneeds, which also
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