With each piston stroke, a small quantity of atmospheric air or gas is pumped into the discharge air vessels.
With each piston stroke, a small quantity of atmospheric air or gas is pumped into the discharge air vessels.
在活塞的每个冲程中，将少量的空气或气体输送到空气槽内。
With each piston stroke, a small quantity of atmospheric air or gas is pumped into the discharge air vessels.
在活塞的每个冲程中，将少量的空气或气体输送到空气槽内。