Small, compact, all-steel gears, overall surface rust-proof handling, load capacity, and cheap.

体积小，结构紧凑，全钢制齿轮，整体表面防锈 处理， 负载能力强，价格便宜。

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First, clear the gap and around the base surface of the dirty debris or water surface rust, scrub clean with a damp cloth.

首先清除缝隙及周边基面的脏杂物或水管表面的铁锈，用湿布擦洗干净。

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The paper describes the performance and production application of the surface rust preventer developed to protect the CO2 shielded arc welding wires from rusting.

介绍了为解决二氧化碳气体保护焊焊丝锈蚀问题而研制的表面防锈剂的性能及其在生产上的应用。

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Like other iron minerals, green rust readily absorbs dissolved elements onto its surface, but green rust is not only particularly efficient at this in many cases, it can also react with toxic dissolved trace metals to make them insoluble, and as a result, renders them in nontoxic forms.

MSN: What green rust did long ago to the big blue ocean

Over millions of years this created an oxygen-rich atmosphere that rapidly removed electrons from minerals near the surface, creating rust out of iron and forming thousands of new minerals from other metals like nickel, copper and uranium.

ECONOMIST: Minerals