详细介绍了枪黑电镀工艺全过程，包括配方、溶液配制、工艺规程及操作注意事项等。
The whole processes of gun black electroplating, including solution constitution and preparation, processing regulations and performing cautions, were discussed in detail.
现在这么黑，我们又只有一把枪。
当气体枪开火，巴伦支海洋里的鳕鱼和黑鳕鱼离开了这个区域，数天内大量减少捕鱼数量。
Cod and haddock in the Barents Sea have been found to flee the area when air guns start firing, drastically reducing fish catches for days.
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