You have to be tough with these young thugs.对这些青年暴徒态度一定要强硬。It makes my blood boil to think two thugs decided to pick on an innocent young girl.一想到两个暴徒要欺负一个天真的小姑娘，我就满腔怒火。The thugs showed no pity.那些恶棍一点慈悲心也没有。It's a s...
水泥浆的密度和流量是固井施工过程中的两个重要参数.Mud fluid's density and flow are two important parameters during well cementation.砖可以干铺,也可以水泥浆砌合.They can be laid dry or with cement grouting.因此, 决定采用化学发气泡沫水泥浆封固气层.Thus, chemical gas foamed ...