当不同的金属是在相同的电解物的电连络中的时候,流电的腐蚀发生.Galvanic corrosion occurs when dissimilar metals are in electrical contact in the same electrolyte.如何得知发电机所产生的电流是文流电还是直流电?This depends on the design of the generator commutator is required ...
The boy was suffering from a bowel obstruction and he died.这个男孩因患肠梗阻死去了。the obstruction of justice妨碍司法公正The asylum seekers had to contend with continued bureaucratic obstruction.寻求政治庇护的人得不断地应付官僚主义的层层阻挠....
两个瓷罐子装着热气腾腾的肉卤.Two china jugs held steaming gravy.我竟然找到了妈妈那套瓷器中的这只船形肉卤盘.I had found the gravy boat from my mother's china service.这当儿,我把手伸到枕头下面,拿出了那只船形肉卤盘.Then I reached under my pillow and out the gravy boat....