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Mining is the extraction of valuable minerals or ***** geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. Exploitation of these deposits for raw material is based on the economic viability of investing in the equipment, labor, and energy required to extract, refine and transport the materials…[Читать далее]

The ocean is the origin of life. ***** are more than 200,000 species of creatures in the ocean, including about 180,000 species of animals and more than 20,000 species of plants. ***** are 25,000 species of fish in animals and more than 200 species of fish for human consumption. The ocean can provide human beings with green energy. The potential…[Читать далее]

A barbecue grill or barbeque grill (known as a barbecue or barbie in Australia and New Zealand) is a device that cooks food by applying heat from below. ***** are several varieties of grills, with most falling into one of three categories: gas-fueled, charcoal, or electric. ***** is debate over which method yields superior results. Gas-fueled…[Читать далее]

A heat pump is a device that transfers ******* energy between spaces, usually between an enclosed space and the outdoors. When used to heat a building, the energy is transferred from the outside into the building. A heat pump can also work as an air conditioner by transferring heat from the building to the outside. Because of their high efficiency…[Читать далее]

An oxygen sensor (or lambda sensor, ***** lambda refers to air–fuel equivalence ratio, usually denoted by λ) is an electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analysed. It was developed by Robert Bosch GmbH during the late 1960s under the supervision of Dr. Günter Bauman. The original sensing ele…[Читать далее]

An electric bicycle (e-bike, *****, etc.) is a motorized bicycle with an integrated electric motor used to assist propulsion. Many kinds of e-bikes are available worldwide, but they generally fall into two broad categories: bikes that assist the rider’s pedal-power (i.e. pedelecs) and bikes that add a throttle, integrating moped-style…[Читать далее]

China Electric Bicycle, Electric Motorcycle, Electric Mountain Bike Suppliers, Manufacturers - SUOYUJiangsu Suoyu Technology Co., Ltd: Welcome to wholesale bulk cheap electric bicycle, electric motorcycle, electric mountain bike, electric scooter, travel electric bicycle for sale **** from professional manufacturers and suppliers in China. Our factory offers high quality customized products with low price. Please feel free to contact us for quotation.

A bathtub, also known simply as a bath or tub, is a container for holding water in which a person or animal may bathe. Most modern bathtubs are made of ************ acrylic, porcelain-enameled steel, fiberglass-reinforced polyester, or porcelain-enameled cast iron. A bathtub is usually placed in a bathroom ****** as a stand-alone fixture or in…[Читать далее]

A storage cabinet is a small, usually narrow storage compartment. They are commonly found in dedicated cabinets, very often in large numbers, in various public places such as locker rooms, workplaces, middle and high schools, transport hubs and the like. They vary in size, purpose, construction, and security. Storage cabinets are normally quite…[Читать далее]

Fiberglass is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet called a ******* strand mat, or woven into glass cloth. The plastic matrix may be a ********* polymer matrix—most often based on *********ting polymers such as epoxy, polyester resin, or vinyl ester resin—or a the…[Читать далее]

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A position sensor is a sensor that detects an object’s position. A position sensor may indicate the absolute position of the object (its location) or its relative position (displacement) in terms of linear travel, rotational angle or three-dimensional space. Different from the displacement sensor, the position sensor has two types: contact type…[Читать далее]