The pioneer of qj36 dual-purpose DC bridge strength

The qj36 dual-purpose DC bridge is a precision electrical measuring instrument. The qj36 dual-purpose DC bridge is used to measure the conductor resistance. The precision level is 0.02. The qj36 dual-purpose DC bridge adopts different linking methods to form a single bridge. And double bridge .......

Environmental impact assessment of mining projects

(1) Environmental impact assessment form Environmental impact assessment refers to the analysis, prediction and evaluation of possible environmental impacts after the implementation of planning and construction projects, and the countermeasures and measures to prevent or mitigate adverse enviro.......

Pure spotlights become the new choice for home lighting

The small size of the apartment, the use of complex fancy chandeliers is easy to visually lower the height. Good-looking European chandeliers are difficult to clean and manage, which is more troublesome. The ceiling lighting is not enough. At night, we have to add a desk lamp for the work. The .......