... 循环荷载;周期荷载：cyclic loading 循环供热：circulation heating 循环工程手动操纵：manual cycling control ...
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forced circulation heating 强制循环取暖
natural-circulation heating 自然循环供暖
Oil circulation heating system 热油循环系统
nature circulation heating system 自然循环供暖系统
heating circulation 采暖循环
heating circulation pump 采暖循环水泵
circulation water for heating 供热循环水
Circulation pump of heating network 热网循环泵
forced-circulation hot water heating 强制循环热水采暖
SBR latex for paving with solid content 45% was prepared by the vacuum con centration process with viscosity depressant and outside circulation heating.
用减粘剂法釜式（卧式蒸发器）外循环加热真空浓缩工艺生产了固体物质量分数为45 %的道路胶乳。
According to the statements of configuration characteristic of water tank, this paper analyzes its application in nature and mechanism circulation heating system.
本文通过对水箱结构特点的阐述，分析了其在自然循环供暖系统、机械循环供暖系统中的具体应用。
Generally forced convection circulation heating device taking gas as heat transmission medium requires high temperature uniformity. So it is very important for selection of fans and control method.
对温度均匀性要求较高的电热设备，通常采用强制循环对流的加热方式，因此风机的选型及控制对能否达到要求的温度均匀性至关重要。
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