trigger down /hose drop 关于高压水清洗? 问题1:喷枪清洗时不能做的: don't tie gun lever or trigger down 。(tie是打结吗? trigger down是“人员绊倒”吗? ) don't start unit with gun engaged. 问题2:高压水清洗: when hose drop exceed 3 meters , the hose shall be securely tied off to a rigid support with an appropriate rope to limit the pull due to hose weight. ( hose drop 是什么??) 查看更多