Archaeologists have uncovered some ancient earthwork.考古学家发现了一些古代的土建工程.Square grid is a common method used to estimate earthwork quantity.方格网法是工程土方量计算中应用最为普遍的一种方法.Scope: Earthwork Construction Machinery Construction Earth...
Diisopropyl succinate was synthesized from succinic acid and isopropanol with p - methyl benzenesulfonic acid as catalyst.摘要以丁二酸和异丙醇为原料及对甲基苯磺酸为催化剂,催化合成丁二酸二异丙酯.The usual thinners are water, ethanol, isopropanol, ethylene ...
It taught only materialism, the gospel of mammon.它只是宣扬金钱至上的物欲主义。It is not every day that one meets a business-person who is not obsessed with Mammon.不贪财的生意人可遇不可求。It was possible to serve God and Mammon at the same time.敬...
Boron - substituted polyaromatic mesophase prepared by co - pyrolysis of a tar pitch with pyridine - borane complex under autogeneous pressure.以煤焦油沥青和吡啶硼烷为原料采用加压热缩聚工艺制备硼取代聚芳烃中间相沥青.A new syntan product prepared with tar p...
The building was of greyish plaster and looked old.这幢楼刷的是浅灰色的灰泥，看上去有些陈旧。Obviously the plaster's just perished and all fallen off.很明显灰泥已脆裂老化，全剥落下来了。He mixed up some plaster to repair the wall.他和了一些灰泥去补墙。The plaster i...