ball diameter variation
常見例句
- An adjustable-speed four-ball machine was used to test the steel ball wear spot diameter variation laws under different load conditions and rotational speeds.
利用可調(diào)速四球機(jī)測試血液在不同轉(zhuǎn)速及不同載荷條件下鋼球平均磨痕直徑的變化規(guī)律。 返回 ball diameter variation