通过顶枪、侧枪吹氧，可以提高搅拌能，提高传热效率。
The oxygen injection by top lance and side lance can increase the effective stirring power and enhance heat transfer efficiency.
两门8毫米口径的机关枪分别被安装在车身两侧的球型固定底座上，做自卫之用。
Two additional Hotchkiss-type 8mm machine guns were fitted in positional ball mountings on either side of the upper hull for self-defense.
这个陌生人困难地离开椅子，手放在身侧，仍握着枪。
The stranger moved uneasily in the kitchen chair, his hand still holding the gun at his side.
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