A cyanide free silver electroplating process with 5, 5 - dimethyl hydantoin as coordination agent is studied.研究了5, 5- 二甲基乙内酰脲为配位剂的无氰镀银工艺.The process of cyanide free silver pulse electroplating is investigated in 5, 5 - d...
Swissair flight 135 will take off from Heathrow at 7:30 p.m.瑞航135班机将于下午7点半自希思罗机场起飞.An airliner came close to disaster while approaching Heathrow Airport.一架大型客机在飞近希思罗机场时差点儿发生空难。She was driven from Heathrow by limo to the ...
The Appeal Tribunal has reversed the Disciplinary Committee's decision on the licensee.上诉审裁小组已推翻纪律委员会对该持牌人所作的裁决.Licensee shall keep the Licensed Materials free and clear of all claims, liens and encumbrances.乙方应使授权物...