钛合金，高铬不锈钢在大气中完全耐蚀。
Titanium alloys and high chromium stainless steels were corrosion free.
码厚四十八毫米拉伸铬钼钢完全环绕司机和领航员。
Yards of thick 48mm tensile chrome-moly steel completely surround driver and co-driver.
在醋酸、聚乙二醇存在下，铬酸酐和苊在温和的条件下反应，苊可以完全转化为苊酮。
In the presence of acetic acid and polyethylene glycol, chromic anhydride and acenaphthene react under mild condition and acenaphthene can completely convert into acenaphthenone.
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