Avoid prolonged heating of valve itself.
避免延长阀门本身的加热时间。
SOAKING: Prolonged heating of a metal at a selected temperature.
浸泡：在特定的温度下，延长对金属的加热时间。
It should be asked to avoid prolonged heating, high pressure and temperature.
应避免过长的加热时问，过高的压力和温度。
Be sure that valve is fully open. Apply heat to tube first. Transfer as much heat as possible through tube into valve. Avoid prolonged heating of valve itself.
要确保阀门处于开启状态。先对管道加热。尽可能多的将热从管道传递到阀门。避免延长阀门本身的加热时间。
To minimize thermal degradation due to prolonged heating during evaporation, it is necessary to minimize the time that the food product remains at elevated temperature.
为了减少蒸发中由于长时间加热而产生的热降解，缩短加工食品在高温下的时间是必需的。
It is typically caused by prolonged exposure to heat or an infrared source such as a heating pad or hot water bottle.
通常是由于长时间暴露于高温或者红外线辐射源，例如加热垫或者热水瓶。
They say another factor is prolonged freezing weather in parts of the United States, Europe and Asia, which is boosting demand for oil products such as heating oil.
这些分析人士说，另一个原因是美国、欧洲和亚洲部分地区长时间严寒天气导致对供取暖用燃料等石油产品的需求量增加。
Furthermore, the heating layer made by patch shape flexible material can bend without break, hence, service life of the electrothermal textile is prolonged largely.
再者，由片状柔性材料制成的发热层可以弯曲而不折断，因此电热纺织品的使用寿命大大延长。
Secondly, the heating layer heating time is prolonged largely by using high-capacity external battery.
其次，采用大容量的外置电池使得发热层的发热时间也大大延长。
Secondly, the heating layer heating time is prolonged largely by using high-capacity external battery.
其次，采用大容量的外置电池使得发热层的发热时间也大大延长。
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