As the thud of mortar rounds shook the adjacent street and the rattle of machine guns came from nearby, the rebel fighters advanced under sniper fire from the surrounding rooftops.
迫击炮撼动了周边的街道，机枪在附近嗒嗒作响，反抗军冒着楼顶狙击手的火力向前行进。
Current researches on dry - mortar are focused on localizable technique, craftwork, and machine of production in our country.
目前我国干拌砂浆的研究主要集中在“本地化”生产技术和工艺、研制国产生产设备等。
Mat layer shall first be wet, put a layer of thick 2 ~ 3 cm of cement mortar, he slipped end-over-end machine and then in cement mortar before the first layer of concrete pouring agglomerate.
垫层应先加以潮湿，铺一层厚2～3cm的水泥砂浆，涵管机然后于水泥砂浆凝聚前浇注第一层混凝土。
Mat layer shall first be wet, put a layer of thick 2 ~ 3 cm of cement mortar, he slipped end-over-end machine and then in cement mortar before the first layer of concrete pouring agglomerate.
垫层应先加以潮湿，铺一层厚2～3cm的水泥砂浆，涵管机然后于水泥砂浆凝聚前浇注第一层混凝土。
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