当网纹辘的小窝盛满涂料时, 细小气泡在涂料内形成, 引致微泡沫.When reseaus reel's full of coatings, the small bubble formation in used, resulting in a aphrons.通过实验优选出了一种低密度水基微泡沫压井液.The low density and micro foam control fluid was optimized to ov...
It was nine o'clock in the morning, and half a gale was howling along the Bund.早上九点钟,外滩一带, 狂风怒吼.My sister and I were in the Bund of Shanghai in 1999.1999年元旦,我的小妹和我在上海外滩.Visitors can get on boat at the ferry pier on ...