久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

“水泥漿”的拼音為：shuǐ ní jiāng...

水泥漿的密度和流量是固井施工過(guò)程中的兩個(gè)重要參數(shù).Mud fluid's density and flow are two important parameters during well cementation.磚可以干鋪,也可以水泥漿砌合.They can be laid dry or with cement grouting.因此, 決定采用化學(xué)發(fā)氣泡沫水泥漿封固氣層.Thus, chemical gas foamed ...

“水泥漿”的英語(yǔ)可以翻譯為：[材] cement paste，grout ...