求翻译：排气凸轮由槽板（1）、夹板、调节丝杆（3）、块、凸轮（5）五个部分组成。排气凸轮的主要作用在瓶子下降前将瓶内的气压均匀排出，使瓶内的压力保持与外界压力相等，防止瓶内气压因突然泻压引起翻沫而造成灌装液位的不满。是什么意思？

The exhaust cam groove plate (1), plywood, adjust the screw (3), block cam (5) five parts of the composition. The main role of the exhaust cam pressure of the bottle before the bottle drop uniform discharge, so that the bottle pressure was maintained equal to the external pressure, to prevent the bo

Exhaust cam plate ( 1) the trough, splints, regulating silk pole piece ( 3 ), ( 5) , 5 cams. Exhaust CAM in bottles fell before the main role will be in the cylinder, so that the air pressure in the cylinder evenly emit the pressure to keep with the outside world in the cylinder pressure equal to pr

The exhaust cam by the trough board (1), the clamping plank, adjusts the lead screw (3), the block, the cam (5) five parts is composed.Before the exhaust cam main function drops in the jar discharges evenly the bottle in barometric pressure, because causes in the bottle the pressure maintenance and

Exhaust cam grooves (1), plywood, adjusting screw (3), blocks, cam (5) consist of five parts. Exhaust cam mainly reduced air pressure within the bottle in a bottle-uniform discharge, so that the pressure inside the bottle will remain equal to the outside, preventing pressure within the bottle fillin