There is certain expansion clearance between different parts of boiler and one another which can prevent deformation of heated surface due to restrained expansion.
锅炉各部件及相互之间有一定的膨胀间隙，可防止受热面由于膨胀受约束而变形。
The paper elaborates on the advantage of expansion clearance device of modular bridge, and introduces the application of the expansion clearance device of a typical bridge in expressway.
着重阐述了模数式桥梁伸缩缝装置的优点，以及具有代表性的毛勒桥梁伸缩缝装置在高速公路中的应用。
The fit clearance between spool and sleeve decreases because of the thermal expansion of the spool caused by temperature increment, so it is possible that spool is deadlocked in sleeve.
油温升高使阀心受热膨胀，阀套与阀心间的配合间隙减小， 阀心有可能被卡死在阀套里。
In cold state, excessive small gap in partial zone can cause free-clearance under thermal expansion effect and cause the copper bushing damaged.
冷态下局部过小间隙还会造成热膨胀状态下无间隙而使铜套受损。
In cold state, excessive small gap in partial zone can cause free-clearance under thermal expansion effect and cause the copper bushing damaged.
冷态下局部过小间隙还会造成热膨胀状态下无间隙而使铜套受损。
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