用水泥砌牢石头.Stones are bedded in cement.她用水泥抹墙，并趁它还没干时粘上贝壳。She rendered the walls in cement and, while it was still wet, applied the shells.这个砖房的前面用水泥抹的.The front of the brick house was faced with cement....
Food breathed into the windpipe can cause choking.吸进气管的食物会造成窒息.One end of the windpipe is connected with a unidirectional inflating valve.气管的一端与单向充气阀连接.A tube was introduced into the patient's windpipe.一根试管插入了病人的气管....
试验应用鸡公雏, 检测了人工合成青蒿素对鸡盲肠球虫病的预防效果.Using younger cocks, the preventive result of artificial synthesize arteannuin to Chicken Caecum Coccidiosis was examined.目的了解张家口地区兔球虫种类及感染情况.Objective To get message of the coccidian infe...