挂霜
- 网络Frosting;crusta
![挂霜](../cache/1424282.jpg)
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如何防止发蓝膜层的红色挂霜
Preventing red exo-frost on bluing coating
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实践证明,采用适当措施可以有效防止发蓝膜的红色挂霜。
The practice shows that proper measures can be taken to effectively prevent red exo-frost on bluing coating .
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分析了发蓝膜层出现红色挂霜的原因:溶液主要成分含量过高、铁氧化物过多、发蓝槽容量小、工艺操作不当、工件多次返修等。
The causes of red exo-frost on bluing coating were analysed , which were higher content of main component in solution , more ferriferous oxide , smaller bluing tank volume , poor operation , repeated workpiece reworking , etc. .
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化装成骠骑兵、太太、巫婆、丑角、狗熊的人在接待室里咳嗽几声,清清嗓子,擦干净挂了霜的面孔,然后进入人们急急忙忙地点燃蜡烛的大厅。
The hussars , fine ladies , witches , clowns , and bears , coughing and rubbing the hoar-frost off their faces , came into the hall , where they were hurriedly lighting candles .
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她的脸上大概又擦了粉,被灯光照得显出点灰绿色,像黑枯了的树叶上挂着层霜。
She seemed to have powdered her face again and the lamplight gave it a grey-green tinge , rather like a black withered leaf covered with frost .