两轴运行的排调心方对球轴承齿轮，和一个标准就在轴箱弹簧的另一端密封球的比赛，两个12毫米口径。
The axles run in two-row self aligning ball bearings on the gear side, and a standard sealed ball race on the other end in the sprung axle box, both 12mm bore.
空气在向下运动过程中受到浮标向上的推力，使阀球将阀门里的气舱密封住，这样迫使气流进入雾笛。
Air is forced up from the buoy counterweight tube during downward motion causing the balls to seal the air ports in the valve, thus forcing the air to flow into the whistle.
该喷头主要由喷头架、 密封件及玻璃球组成。
The sprinkler is composed of sprinkler frame, sealant and glass bulb.
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