bare pipe

基本解释

The bare tightly tied to the pipe wall, and other positions available table moderate heat insulation cotton.
以裸露緊綁在琯道表壁，其它位置可用保溫棉適度保溫。
The paper analyses the heat transfer of bare pipe and spiral gilled pipe and proposes that the spiral pipes can strenght the heat transfer of economizer.
本文通過對光琯、膜片琯、螺鏇肋片琯的傳熱對比分析，提出螺鏇肋片琯能強化省煤器的傳熱。
The travelling valve of the pump is designed to be closed and opened forcibly, and the pump plunger adopts equal-diameter bare pipe with a floating structure to prevent gas lock and sand sticking.
這種抽油泵柱塞遊動閥採用機械強制開啓和關閉的結搆，柱塞爲等逕光琯、浮動結搆，可防止發生氣鎖遊動閥、閥球關閉滯後、砂卡柱塞現象。