原文：
　 　LYB圆弧齿轮泵主要有齿轮、轴、轴承套、泵体、泵盖、轴端密封等组成。该泵属船用泵具有运转平稳，噪音低，寿命长，效率高的特点,本系列泵采用机械密封，根据用户要求也可以采用填料密封 　　圆弧齿轮泵类型： 　　适用于立式安装的船用泵 　　圆弧齿轮泵应用范围： 　　环境温度{zg}为50℃，使用温度{zg}为80℃。 　　圆弧齿轮泵采用了国际上被认为输送泵{zxj}的一点连续接触齿轮，即双圆弧加正弦曲线复合成齿形，可彻底淘汰渐开线齿轮输送泵。曾获{gjj}重大科技成果项目，并获国家教委科技进步三等奖。圆弧齿轮在两啮合齿廓间为一点连续接触，不会产生困油现象，彻底解决了渐开线齿轮泵因困油现象导致泵的振动、噪声、轴承负载增大等现象。因此圆弧齿轮泵具有效率、噪声低，并具有良好的节能效果。

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译文：
LYB main arc gear pump gear, shaft, bearing sets, pump, pump cover, shaft seals and other components. The pump is a marine pump has a smooth running, low noise, long life, high efficiency features, this pump mechanical seal, according to user requirements can also be applied to gasket seal Arc gear pump type: Apply to vertical installation of marine pump Circular Gear Pump Applications: The maximum temperature is 50 ℃, the highest temperature is 80 ℃. Arc gear pump is internationally considered a little pump of the most advanced continuous contact with gear, or double-arc sine curve plus compound into a tooth can be completely out of the involute gear pump. Project won the national major scientific and technological achievements, and by the State Education Commission Science and Technology Progress Award. Arc tooth profile gear meshing between the two continuous contact for the point, does not produce oil phenomena, solve the involute gear pump oil phenomena caused by the pump vibration, noise, bearing the load increases and so on. Therefore, efficient arc gear pump, low noise, and good energy saving effect.