ballast space
常見(jiàn)例句
- Before entering an enclosed space such as ballast tank, what action will you take?
在進(jìn)入封閉空間前，（如壓載水艙）應(yīng)作什麼準(zhǔn)備工作？
blog.sina.com.cn - Pumping means are immersed in the ballast 4 to ensure the extraction of water and to cause the vertical shifting of the building in the out position for interaction with the surrounding space.
泵送裝置浸沒(méi)在壓載物4中以確保水被抽出，以及使処於與周?chē)臻g相互作用的外部位置的建築物竪直移動(dòng)。 返回 ballast space