振动问题一直是引起底部钻具失效的主要原因，对其进行研究能减小钻具损害和各类井下事故的发生。

Research on vibration problems which is the main reason causing bottom drilling tool failure, can reduce drilling tool damage and emergence of underground accidents.

youdao

振动会对人体、精密仪器设备和建筑物结构造成损害。

The human body, the precision instrument and equipment and the building could be damaged possibly by vibration.

youdao

目的探讨手传振动对接触者早期职业损害的指标，避免发生手传振动导致的不可逆改变。

Objective to study the early indicator of hand arm vibration damage and avoid irreversible changes of hand arm vibration disease.

youdao