Despite the six-month toll of perhaps 30, 000 dead and 30, 000 missing (there are no accurate estimates), most Libyans appear immensely relieved that things have gone as well as they have.
Measurement tools: Measurement tools shall be checked regularly according to relevant requirements. The dead weight of various vessels should be made accurate and marked with paint in advance.
计量器具：计量器具按规定周期检定，各种容器的自重应事先称量准确，并用油漆标明。
3
It is a very important link for autonomous navigation of mobile robot to have an ability in accurate and reliable dead reckoning.