This seam of coal reposes on a layer of clay.这个煤层处于一层黏土岩之上.A new method for seam tracking using image centroid in gas tungsten arc welding is presented.研究一种基于图像质心识别的电弧焊焊缝跟踪新方法.The crack in the coal seam is divided into t...
If the city's foreign residents are enfranchised, they won't be able to vote until 1996.如果该市的外国居民获得选举权，他们要到1996年才能投票。In Britain women were enfranchised in 1918.1918年英国妇女获得议会选举权....
I was impolite and I do beg your pardon.我失礼了，真对不起。It is impolite to ask too many questions.提出过多的问题是不礼貌的。Don't stare at me— it's impolite!别盯着我看——这是不礼貌的！...
In niobium alloy containing carbon occurs decarburization in case of contamination by oxygen at higher temperature.含碳的铌合金,若在高温下受氧沾污,易产生脱碳现象.Decarburization shall be determined by microscopic examination as described in B...