通常所发现的这种损坏是由于应用比重计不当造成的.Such damage is usually found to have been caused by hydrometer misuse, especially with symthetic separators.用泥浆比重计测出泥浆的密度.Use the mud balance to determinate the mud weight.通过测量密度来测定盐溶液的浓度的液体比重计.An...
The dogs continued to paw and claw frantically at the chain mesh.那些狗继续用爪子疯狂地抓铁丝网。The islands lie at the southern end of the Kurile chain.这些岛屿位于千岛群岛的南端。Whenever recession strikes, a chain reaction is set into motion.只要经济不...