The engine - feed system interface is at the turbopump inlet flanges.发动机与供应系统的交界是在涡轮泵的进口法兰盘处.The web and flanges of the main girders were fabricated from ASTM A 441 steel.主梁的腹板和翼缘用ASTMA441钢制造.During fabrication slots for...
Silver azide does not dissolve in water or in nitric acid.叠氨化银不溶于水或硝酸.It is possible to harness the versatile chemical properties of cyanogen azide.氰化叠氮的灵活多变的化学性质是可控制的.Cupric azide is insoluble in water.叠氮化铜不溶于水....
理查德告诉过我16世纪的三卷关于炼金术的对开本书籍的事。Richard told me of three 16th-century folio volumes on alchemy.近期将出版书籍的目录a list of forthcoming books房间里有一股长期不用和霉烂书籍的味道。The room smelt of disuse and mouldering books....