介绍了一种已实现工业应用的磨砂型材生产工艺.The process of grit dose used aluminium Profile fabrication industry is introduced.在粘土砂型铸造生产过程中经常出现夹砂类缺陷.In casting iron production casting iron scab flaw is often found.砂型铸造 - 手工造型 - 机器造型 ( 和壳型 )Sa...
Harry tried to fix the chair, but he was all thumbs.哈里想修理那把椅子, 可他笨手笨脚的.His fingers are all thumbs.他笨手笨脚.I dropped my coffee cup. I'm all thumbs today.我把咖啡杯掉到地上了. 我今天笨手笨脚的....