Water runs through the gravelly soil very quickly.水从砂砾地上奔流而过。There's a triumphant note in his gravelly voice.他低沉沙哑的声音中透露出一丝洋洋得意。a dry gravelly soil多沙砾的干土...
主要从自动测厚装置、自动分析控制系统、辊筒间距调节机构三个方面论述该自动调距方案.The paper introduces the auto controlling of adjusting the gap between two rolls for calender.本课题要研究的就是一款带自动测光 、 自动卷片 、 自动曝光功能的全自动单反相机.The subject for study is a kind of automatic...