Other additional functions such as light control switch, control switch when the controller should be optional.
2
一旦井控或井涌发生时，可以用于快速密封井眼上部的装置称为闸板式防喷器。
A device that can be used to quickly seal the top of the well in the event of a well control event (kick).
3
在设计航天器姿控系统时，需要充分考虑各种光照条件下航天器所受到的太阳光压干扰力矩。
When designing the attitude control system of spacecraft, it is necessary to take account of the sunlight pressure disturbance torques under various sunlight incident conditions.
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