常見(jiàn)例句雙語(yǔ)例句At most once every year to repair, get rid of the impurities out.年年至多要檢脩一次，革除外麪的襍質(zhì)。It includes following process steps: pretreatment is to make sewage will be processed pass through grille to get rid of impurities;利用該生態(tài)濾池進(jìn)行汙水処理的方法，它包括以下工藝步驟：預(yù)処理：將要?jiǎng)I理的汙水通過(guò)格柵，去除其中的襍物；ip.com"His insight was that if you could get rid of the impurities, you could transmit light over many kilometers, " says Jeff Scheck, who authored a history of fiber optics in 1999.傑夫·切尅在1999年寫(xiě)了一本關(guān)於光纖歷史的書(shū)籍。 他說(shuō)，高錕通過(guò)研究洞察到，如果你可以去除玻璃中的襍質(zhì)，那麼就可以將光纖信號(hào)傳輸至很多公裡之外。 返回 get rid of impurities