This is the most common trigger mechanism, but it's not the only one inuse. Some areas have had success with radar, laser or air-tube sensors.
这是最普通的触发器机构,但不是唯一在用的。一些地区已经在雷达,激光或空气导管传感器上取得成功。
2
It is unsuitable to use the theory of common small-medium piles to analyze LDPs, because there are distinguished differences in the mechanism of load transfer and deformation features between them.