The man 's a rubdown whore .

那人是个按摩女郎。

It 's not safe for your tyre rubdown .

你的轮胎磨平了，不安全。

Too gentle a rubdown leaves contaminants on the surface . Too vigorous a scrubbing erodes the metal itself .

擦拭太过温柔，其表面会留有污染物；用力过猛，又会擦掉金属本身的表面成分。

In addition the beforehand media once reported that the oversized student scratches the leather shoes , to give somebody a rubdown , manicure and so on , can not but say , present 's university students indeed were " the high quality common laborer " .

加上以前媒体曾报道过大学生去擦皮鞋、搓澡、修指甲等等，不得不说，现在的大学生的确是“高素质的普通劳动者”了。

Importantly , says dr cumpson , unlike a manual rubdown , his procedure can easily be standardised , and the kit necessary to perform it is cheap and widely available , allowing laboratories around the world to keep their own kilogram replicas clean .

重要的是，坎普森博士说，他们的清洁方法是可以标准化的，不像人工擦拭，而且这种方法所涉及的东西既便宜又唾手可得，可以清洁世界上所有实验室的重量单位复制品。