The upper is communicated with the gas chamber and the lower is linked with the rocker through the crank.

上端与气室相连，下端通过曲柄与摇杆相连。

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The bevel gears and the crank shafts are totally enclosed in oil chamber and require no attention, except periodical checks.

锥齿轮和曲柄轴都在油室内，除定期检查外，无需专门关注。

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A shoulder sprayer comprises a box body, a gas chamber, a pump, a link rod, a rocker, a crank and a spray tube with a suction pipe.

一种背负式喷雾器，由箱体、气室、唧筒、连杆、摇杆、曲柄、带吸水管的喷管组成。

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