Man does not reveal hilf in his history, he struggles up through it.

人不能在他的中表现出他自己, 他在中奋斗着露出头角.

互联网

As far as the methods of compaction control be concerned , author studied Hilf three - point - compaction especially.

特别对于宽级配砾质土的压实控制方法, 重点研究了用西尔夫三点击实法.

互联网