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 ...
通常白云石晶体构成格架,它有均匀分布的孔隙.Commonly the dolomite crytals form a framework with evenly distributed porosity.白云石通常具有较高的斜方晶碳酸盐/CaO比例.Dolomites usually have higher rhombic carbonate / CaO ratio.局部地方白云石和硬石膏也是重要的胶结物.Locally dolomit...
His van allegedly struck the two as they were crossing a street.据称，他的货车在那两人过马路时撞上了他们。He had allegedly tried to proposition a colleague.据说他曾试图向一名同事求欢。He lost his job for allegedly being incapable.据说他由于软弱无能而丢掉了工作。...
It is less polluting than power stations fuelled by oil, coal and gas.比起以石油、煤和天然气为燃料的发电站来说，它的污染要小。Others said the tumult had been fuelled by precisely these strategies.另一些人则认为,正是这些措施助长了骚动.Political polarisation in indust...
The cart can automatic retracting, releasing and laying cables.本收放车具有自动收线、放线 、 排线功能.Arc ignition : retracting and scraping.引弧可采用“回抽”、“刮擦”起弧方式.I mean, is the art of retracting just too much for you?我是说, 这个缩进技术对于你太难了 吗 ?Th...