heat exchange和chiller区别?

提升, 拖动, 拉动(重物): We heaved the wardrobe up the stairs. 我们用力把衣柜搬上楼了. (b) [I, Ipr] ~ (at/on sth) pull (at a rope, etc) 拉(绳等): heave (away) at the capstan 转动绞盘 *| `Heave ho!' cried the sailors as they rai

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