【悬赏】200BB求翻译

Different concrete pumps have different operating methods:
1. If it's a boom pump, after the job is done, do not empty the hopper. (To prevent it from being unable to suck after entering the air) Insert a cleaning ball into the pump pipe at the front end of the pipeline. Then raise the boom to a vertical state, and then operate the reverse pumping status. At this time, the concrete will be reversed from the feed hopper. Remember to use a hammer to strike the section of the conveying pipe connected to the pump truck when you hear an empty sound. Stop when empty sound disappears and empty the hopper. Inject clean water to pump normally until the cleaning ball appears at the front end of the pipeline, which means it's basically clean.
2. If it's a truck mounted pump or electric pump, a concrete tank truck is needed to flush with water. Open the bottom of the hopper and connect the pipeline and the pump truck at the interface of the conveying pipe, and then insert the cleaning ball into the pump pipe. Install the pipe clamp, and clean the material in the hopper. Fill the hopper with water from the tank. Start pumping when the water is full, and pump until the cleaning ball appears at the front end of the pipeline. During the pumping process, water quantity should be guaranteed enough. If the water is too short to clean the pipelines, it will be stuck in the middle, then more water needs to be added. And when pouring the water, keep the tank full to prevent air from entering. If air gets into the pipeline, the water will be sprayed back. The advantage of these pumping methods is to avoid wasting too much of concrete.

Some terms:
Stand pump: 臂泵
Hopper: 料斗
Cleaning ball: 清洁球
Pipes: 泵管
Boom: 泵臂
Truck mounted concrete pump: 车载泵
Electric concrete pump truck: 电泵
Concrete tank car: 砼罐车

注：翻译中的泵车和翻译之后的Pump truck意思相同。