The vacuum insulated tubing is one of the main facilities that are exploited in heavy oil by the injection of steam.
真空隔热油管是稠油注蒸汽开采的主要设施之一，其隔热性能直接影响热采效果。
The connections of cylinders and caps and tubing generally need to be electrically insulated.
气缸和帽子，油管的连接一般需要电气绝缘。
These lead wires are mated to the switch and receiver lead wires by press-on connectors (10) and are insulated by vinyl tubing (11).
这些引线通过按压连接器（10）连接到电门和接受器引线，并通过乙烯基管（11）绝缘。
These lead wires are mated to the switch and receiver lead wires by press-on connectors (10) and are insulated by vinyl tubing (11).
这些引线通过按压连接器（10）连接到电门和接受器引线，并通过乙烯基管（11）绝缘。
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