三程船 third carrier
三峡工程 the Three Gorges Project ; Three Gorges Dam
三次方程 [数] cubic equation ; equation of the third degree
第三产程 third stage of labor
三角方程 [数] trigonometric equation
三角高程网 [测] trigonometric leveling network
三角洲工程 Delta Project ; Delta Works ; Delta Plan
三弯矩方程 three moment equation ; equation of three moments ; [力] three-moment equation
得出多期三程测量一测段平均观测中误差为24微伽。
An error of 24 microgals is obtained for one of the averaged measurement route in the multi-term triple-run measurements.
它已经完成了前往维多利亚的6000英里旅程中的三分之一路程。
It has already completed a third of its 6,000 mile trip to Victoria.
我们在最没有预料到的情况下看见它，那是在沿着通向山顶散落着火山灰的小道上，已经走了四分之三路程的地方。
We got ours when we least expected it - about three quarters of the way up the ash-strewn path that leads to its summit.
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