Fit the plunger in the barrel with the crossbar engaged in the bayonet socket.Withdraw the plunger as far as possible by unscrewing anti-clockwise to the maximum extent.

• 把活塞装入带卡口的杯体中，之后按逆时针方向松开卡口底座螺丝将活塞经可能地拔出到最大体积。