注射器吸满漱口液，接上针头，排出注射器内空气。
Fill the syringe with solution, attach the needle and expel air.
使用减压调整器或单个的控制阀来安全地从钢瓶中排出气体。采用止回阀，防止回流入钢瓶。
Use a pressure reducing regulator or separate control valve to safely discharge gas from cylinder.
固定器控制排出阀门板的动作。
Said fixer can be used for controlling action of discharge valve plate.
固定器控制排出阀门板的动作。
Said fixer can be used for controlling action of discharge valve plate.
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