A crew of assistants oiled and adjusted the release mechanism until it worked perfectly.一班助手给排放装置加润滑油并作调试,直到其达至理想工作状态。The ship has a crew of 57 exclusive of officers.这船上除高级船员外,有57名普通船员.Paul picked out a crew of men who c...
在丙酮、丁二酮水溶液中采用化学氧化法合成 纳米 聚苯胺, 并研究有机溶剂的含量对纳米聚苯胺导电性能的影响.The nano - was synthesized through the chemical oxidation method in an solution of acetone or diacetyl, separately.以氯化锌为路易斯酸催化剂,探讨了2 ─ 亚甲基─1 ─ 苯基 ─ 1.3 ─ 丁二酮与1.3 ─ 环戊二...
There are problems in recruiting suitably qualified scientific officers for NHS laboratories.很难为国民医疗保健系统的实验室招募到资历合适的高级科研人员。He recently vacated his post as NHS Personnel Director.他最近辞去了国民保健署人事主管一职。This vaccine is not norm...