1kV直埋电缆
1 kV cables of direct buria
U型垂直埋地换热器
U-vertical underground heat exchanger
U型垂直埋管换热器
vertical U-tube heat exchanger
垂直埋管换热器
ground heat exchanger
vertical geothermal heat exchangers
钢套钢蒸汽直埋管道
direct embedment steel steam pipe with steel jacket
聚氨脂保温直埋管
polyurethane-insulated pipe
论直埋蒸汽管道的设计
on straight embedding steam pipe design
农用直埋电力电缆
rural power cables for direct burial
竖直埋管
Vertical buried pipe
vertical closed-loop pipe
vertical coiled pipe
vertical pipe
蜗壳直埋方案
direct embedment of spiral case
directly embedded project of spiral case
无补偿冷安装直埋敷设
directly buried cold installation without expansion joint
无补偿直埋
Direct-buried pipeline without compensation
无补偿直埋保温管道
non-expand insulated piping
无补偿直埋敷设
noncompensated directly-buring
新型农用直埋电缆
net type of rural buried cable
新型农用直埋电力电缆
new type of directly-buried rural cables