To improve the surface treatment quality of the power capacitor, it is important for the outer covering with a oil free, rust free and rough coating.
为了提高电容器外壳的表面涂装质量，涂装前能够有一个无油、无锈、粗糙的基底对提高漆膜的附着力起着决定性的作用。
Automobile manufacturers were well aware that rust occurred in interior recessed areas, also noting that flat exposed areas, such as roofs, were often rust free.
汽车制造厂商们早已注意到汽车内部隐蔽处的锈蚀，但暴露在外的平面部位，如车顶却不易锈蚀。
The awful truth dawned only after a second opinion, by Zak Pretorius of the University of the Free State in South Africa: stem rust had not only lived on in a remote corner of Africa's Great Lakes.
这一可怕的事实最终被南非自由州大学的ZakPretorius的一个提议所证明——茎锈病不仅仅存活于非洲大湖区的偏远角落，他已经进化并击败了曾经不败的Sr31。
"Now oil the joints in my arms, " he said. And Dorothy oiled them and the Scarecrow bent them carefully until they were quite free from rust and as good as new.
稻草人小心地把它们弯曲着，直等到锈着了的地方十分自由，灵活得像新生的一样才罢手。
Metal parts: Free of rust, splinters, cracks, running paints, scratch, and burrs, or other obvious defects. Edges and corners shall be rounded.
金属部分：无锈，刺，裂痕，脱漆，划痕，毛边，其他明显的缺陷。
Within 200mm area of re-bar end surface, it should be free of rust, oil dirt, concrete slurry etc. The contaminated re-bar should be cleaned for electroslag welding.
钢筋端部200mm范围不应有锈蚀、油污、混凝土浆等污染，受污染的钢筋应清理干净后才能进行电渣压力焊焊接。
All metals must be nickel-free and rust-proof.
所有金属必须镍自由和防锈。
The structure has the advantages of simple and practical use, easy installation and future maintenance, and on-site welding-free property, and rust caused by welding is prevented.
该结构简单实用，易于安装和以后的检修，并且达到现场免焊接的目的，防止由于焊接带来的锈蚀问题。
The structure has the advantages of simple and practical use, easy installation and future maintenance, and on-site welding-free property, and rust caused by welding is prevented.
该结构简单实用，易于安装和以后的检修，并且达到现场免焊接的目的，防止由于焊接带来的锈蚀问题。
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