这只狗的皮毛白色中带有黑斑.The dog's coat is white with black patches.这个梨子有碰伤的黑斑.The pear had bruises of dark spots.你是否有过眼前出现黑斑的现象?Do you ever see specks in front of your eyes?...
1941年11月，佩恩得了严重的肺炎。In November 1941 Payne was seriously ill with pneumonia.新药减轻了肺炎发作时的痛苦。The new drug lessens the severity of pneumonia episodes.她担心会得肺炎或支气管炎。She had feared she was going down with pneumonia or bronchitis...
最初,这些合金为奥氏体合金.Initially these alloys were austenitic.故奥氏体不锈钢不适用于海水环境.As a result , austenitic stainless steels are inapplicable in seawater environment.应变诱发马氏体首先在原奥氏体晶界和孪晶界形核.These lath martensite first nucleates in pare...