Do it, by all means, but strictly on the quiet.这件事一定要干, 不过要严守秘密.The doctor told me on the quiet his patient had cancer.医生暗地对我说,那位病人患的是癌症.She'd promised to give him driving lessons, on the quiet, when no one could se...
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...