缺点是额外需要一名操作人员手动控制高炮水炮的喷雾方向与角度。
The disadvantage is the extra spray direction requires a manual control of water cannon and gun Angle.
Zock说，现在就告诫人们远离喷雾清洁剂还为时尚早，但他补充说：“毫无疑问，从预防的角度来看，我们推荐仅仅在必要的时候才使用喷雾剂。”
Zock said it's too soon to tell people to swear off spray cleaners altogether, but added, "Nevertheless, from the perspective of precaution, we may recommend to use sprays only when really necessary."
喷孔数、碰撞角度和启喷压力三者的合理配合对第三代伞状喷雾至关重要。
The reasonable combination of nozzle hole number, impingement angle and valve opening pressure is very important to the new conical spray.
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