Gas pressure: this window display exit pressure of reducer its function is maintain and adjustment.
本窗口显示的是减压蒸发器的出口压力，其作用主要是维修和调整用。
Fit pressure reducer onto gas bottle and connect to connecting line of filling unit.
将减压器安装到气瓶上，然后将其连接到充气单元的连接管路上。
Fit pressure reducer onto gas bottle and connect to connecting line of filling unit.
将减压器安装到气瓶上，然后将其连接到充气单元的连接管路上。
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