Available in moderate sulfate - resistant ( MSR ) and high sulfate - resistant ( HSR ) Grades. This product is intended for use as a basic well cement.有中抗硫酸盐 型 ( MSR ) 和高抗硫盐盐 ( HSR ) 两类,是一种基本油井水泥.The HSR series is built ...
The most common intrusive in the order of igneous rocks is granite.在火成岩系列中最常见的侵入体是花岗岩.Igneous rocks do not contain fossils.火成岩不含化石.The intrusion sequence for igneous rocks is indicated by crosscutting and inclusion relat...
And all sorts of climatic cycles have been proposed , says geophysicist Maria Zuber of MIT.不过大家都认为存在着所有类型的气候循环.The gravimetric crew usually consists only two persons, one geophysicist and one topographer.而且重力测量仪的操作仅需要两个人...
After five days in the heat of Bangkok, we were ready for the beach.在曼谷的炎热天气中呆了5天之后,我们想要去海边。During our two-day stopover in Bangkok we saw most of the sights.在曼谷中途停留的两天里 ,我们游览了大部分景点。The Oriental in Bangkok is the apotheos...
They will establish impregnable fortresses.他们将建造坚不可摧的城堡.The French constructed a series of fortresses from Dunkirk on the Channel coast to Douai.法国人在从敦克尔刻到杜埃的英吉利海峡沿岸修筑了一系列要塞。Indra smashed through Vritra ninety - nine for...