防锈的英文：
rust protection
rust prevention

Stain proofing
防锈处理

Zinc can be used to cover other metals to stop them rusting.
锌可用来涂在其他金属表面以防锈。

"The machines must be well protected against dampness, moisture, rust and shock."
机器包装必须防湿、防潮、防锈、防震

The car has been specially treated against RUST.
这辆汽车经过专门的防锈处理。

Now I see. These elements must be helpful in prevent rust.
现在我明白了，这些元素一定是能够防锈的。

The bright metal parts should be protected from dampness and rust in transit by a coating of antirust grease.
发亮的金属部件应涂上一层防锈油脂，以防运输途中受潮生锈。

Rust has corroded the steel rails.
锈侵蚀了钢轨。

The underneath of the car was covered with rust.
汽车底部锈迹斑斑。

It never rusts or tarnishes.
它从不生锈，也不会失去光泽。

A protective overlay, as for a mattress or furniture.
护套保护性的饰布，如坐垫或家具。

a protective case for a knife or sword.
刀或剑上的保护性外壳。

invoke the protection of...
祈求…的庇护

To neutralize a city to prevent bombing.
宣布某城市中立以避免被轰炸。

Prevention is better than cure
预防胜于治疗

This has proved an effective preventive.
这种药证明是很有效的预防剂。