Electricity eliminations, that is, removing static equipment, is often used in i
The iron core is the main magnetic circuit in the transformer.It is usually stac
The low -frequency signal generator uses a single -chip micro -shaped synthetic
The greenhouse is also called the warm room.It can transmit light, heat preserva
Informal delay time relay is used in the secondary loop protection and automatic
The air pressure sensor is used to measure the absolute pressure of the gas.It i
There are many types of bending tube, one of which refers to the tools used by t
The alloy saw blade is the most commonly used blade of wood products, but during
Cross -line: Also known as anti -line, line order is arranged in the standard of
Use a rotary or fixed plane of the wood or the woodwork machine of the woodwork