例句與造句

1. application of can field bus on the artificial valve fatigue testing system
   現(xiàn)場(chǎng)總線(xiàn)在人工心臟瓣膜疲勞實(shí)驗(yàn)系統(tǒng)中的應(yīng)用
2. It's difficult to find artificial valves in a sentence. 用artificial valves造句挺難的