Tagged with 'what is'

Screwdrivers are common hardware tools, among which pneumatic screwdrivers are one of them. It is used to tighten and loosen screws and nuts. The shells of Pneumatic screwdriver are mostly made of metal, which feels slightly worse than electric ones. But the metal shell has better anti-static performance and is very labor-saving and convenient to use.

The electronic lawnmower is a mechanical tool for trimming the lawn and vegetation, and its advent has brought great convenience. It is composed of a cutter, an engine, a road wheel, blades, two handrails, and a control part. The cutter is installed on the road wheel and driven by the engine. Some blades are installed on the output axis of the engine, which is driven by the engine and rotates at a high velocity. It not only saves operating time for lawn workers but also reduces plenty of human resources.

The laser distance meter is a measuring tool that accurately determines the distance of the target using a certain parameter of the modulated laser. The pulsed laser distance finder will emit a beam or a sequence of short pulsed laser beams to the target when it is working and receive the laser beam reflected by the target. Then the time from the launch to the reception of the laser beam will be measured by the timer, and the distance between the laser distance measure and the target will be calculated. When the power of the emitted laser beam is sufficient, the range of the laser distance meter can reach about 40 kilometers or more. It can operate day and night, but the distance and accuracy of the ranging will decrease when there are substances with high laser absorption rate in the space.