你为什么不先扭紧小齿轮的螺帽?Why don't you try tightening the pinion nut first?阐述了用化学蚀剂法加工 非圆齿轮 的方法.Setting forth a method of utilizing chemicals to process non - circular gear .因这些小齿轮与不小齿轮的啮合场所是保持的.As a result of these small gea...
I went some miles out of my way to take the scenic road into Macon.我绕行了几英里，想要经由那条风景秀丽的公路进入梅肯。But we couldn't be going to Macon.可是我们不能到梅肯去.I'll send Pork to Macon tomorrow to buy more seed.我要打发波克明天到梅肯去再买一些种子.Oh,...
It can repair xerosis cutis.它能够修护皮肤上的干燥皴裂.Physical examination showed xerosis and pigmentation on his low extremities, and the skin touched hard.皮肤科检查示双下肢皮肤干燥、僵硬伴明显色素沉着.Common agents for the treatment of xerosis are mois...