您要查找的是不是：
- You should take an umbrella just as a precaution. 你该带把伞，有备无患。
- The company does not take proper fire precaution. 公司未采取正当的防火措施。
- The report is scathing about the lack of safety precaution. 该报道对缺乏安全预防措施一事严加指责。
- I took an umbrella as a precaution. 我带了一把伞以防下雨。
- Have you turned off the water valve? 你关掉水阀了吗？
- We need an eye bolt to fit this valve. 我们需要一个有眼螺栓来固定这个阀门。
- I took the precaution of locking everything in the safe. 我把一切东西都锁在保险箱里以防万一。
- He soon detected the faulty valve. 他很快查到了出毛病的阀门。
- precaution valve 预作用阀
- All this wake the local government to the need for safety precaution. 所有这些使当地政府认识到必须采取安全预防措施。
- He replaced the parts with great precaution. 他小心翼翼地把这些零件重新安装上去。
- The pump sucks air out (of the vessel) through this valve. 这台泵通过这个阀门把(容器中的)空气抽出。
- He takes what precaution he likes. 他愿意怎样戒备就怎样戒备。
- Safety first, precaution crucial. 安全第一，预防为主
- Excessive precaution do no harm. 过份谨慎也无害。
- The exhaust valve on my car have burn out three times. 我车子上的排气阀已烧坏三次。
- The exhaust valve on my car has burnt out three times. 我车子上的排气阀已烧坏三次。
- I'll keep the letter as a precaution. 我要保存这封信，以防万一。
- The machine was railed off as a safety precaution. 为了安全起见，把这台机器用围栏隔开了。
- It was a sensible precaution to take. 这样预防一下是明智的。
