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In heating equipment used as fuel, fuel supply and transfer pump.
在供热设备中用做燃油，燃油供应和输送泵。
youdao
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The heating, the heating water temperature low, the supply time is short;
供暖、供热水温度低、供应时间短；
youdao
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The heating, the heating water temperature low, the supply time is short;
供暖、供热水温度低、供应时间短；
youdao