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- An in-service valve suffering from Dezincification has a white powdery substance or mineral stains on its exterior surface. 使用中的阀门如果遭遇脱锌侵蚀，会在阀门外表产生白色粉末或矿物污点。
- The physical attributes of an in-service valve with Dezincification includes a white powdery substance or mineral stains on its exterior surface. 使用中的阀门出现失锌想象时的物理特征包括：在外表面出现白色粉末或矿物污点。
- An in service valve suffering from Dezincification has a white powdery substance or mineral stains on its exterior surface. 应用中的阀门如果出现脱锌现象，在产品表面就会出现粉状物质或矿物污点。
- An in serveice valve suffering from Dezincification has a white powdery substance of mineral stains on its exterior surface. 应用中的阀门如果出现脱锌现象，在产品表面就会出现粉状物质或矿物污点。
- He vainly tried to mark the defacing stain out. 他试图除去有损外观的污迹，但没有成功。
- I put the shirt in soapy water to soak out the stain. 我将衬衫浸在肥皂水里以去除污渍。
- I scrubbed hard at the stain to see if I could get it off. 我使劲擦这个污迹，看能不能将它去掉。
- He doubles the parts of a farmhand and a miner. 在这出戏里他既扮演雇农又扮演矿工。
- I am afraid you must wash out this stain. 恐怕你必须洗掉这个污渍。
- The stain on his shirt is difficult to clean off. 他衬衣上的污点很难去除掉。
- I rubbed hard but the stain just wouldn't go. 我使劲擦也擦不掉那污迹。
- It possessed rich mineral deposits, including gold. 它拥有丰富的矿藏，包括黄金。
- Such a man is a stain to humanity. 这种人是人类的耻辱。
- There's an ink stain on your shirt. 你的衬衫上有一个墨水斑。
- The country possesses rich mineral resources. 这个国家有丰富的矿产资源。
- He left the court without a stain on his character. 他经法庭一役，人格丝毫无损。
- No potassium did we find in this mineral. 在这种矿石中我们没有发现钾。
- A miner's lamp is fixed onto his helmet. 矿灯固定在矿工的头盔上。
- He's got an ink stain on his shirt. 他衬衫上有块墨渍。
- The ink made an indelible stain. 墨水留下一个洗不掉的污渍。
