'Mum thinks I should stop imposing on your hospitality, Leo,' said Grace.“利奥,我妈妈觉得我不应该再在这儿麻烦你了，”格雷丝说。'There, there,' said Mum. 'You've been having a really bad dream.'“好了，好了，”妈妈说，“你只是做了...
A bimetallic strip bends when heated.加热时,双金属长条变弯.The fracture toughness of the bimetallic interfaces is lower than those of respective counterpart metals.在扩展路径上,界面和金属交替出现,且界面的断裂韧性不如相应单一材料的断裂韧性.The bimetallic catalyst for...