At both ends of conduit in non-explosion proof area, the bridging lines should welded or the earth wires should be connected with clamp.
非防爆区域内穿线管连接处两端，应焊接跨接线，或用接地线通过接地卡连接。
Ends welded: 40% of work and 60% of cumulative work.
管道焊接：40%的劳动量和60%的累计劳动量。
Furnace steel and steel plates were welded body constituted by the shell, and its both ends with heat-resistant material made of stainless steel pneumatic door.
加热炉体由型钢和钢板焊接构成外壳，它的两端部装有耐热不锈钢材制成的气动炉门。
The filter medium is crimped down to the support tube at opposite ends thereof and then welded to the support tube at the crimped regions.
所述过滤器介质在所述支撑管的相反端向下弯曲到所述支撑管，并且在之后在弯曲区域处焊接到所述支撑管上。
A method of joining pipes (3) to produce underwater pipelines (2), wherein the facing free ends (15) of two adjacent pipes (3), aligned along an axis (A), are welded to define a cutback (18);
一种连接管道（3）以制造水下管路（2）的方法，其中两个相邻管道（3） 相互面对、沿着轴（A）对准的自由端（15）被焊接在一起，以限定一段修剪 区域（18）；
A method of joining pipes (3) to produce underwater pipelines (2), wherein the facing free ends (15) of two adjacent pipes (3), aligned along an axis (A), are welded to define a cutback (18);
一种连接管道（3）以制造水下管路（2）的方法，其中两个相邻管道（3） 相互面对、沿着轴（A）对准的自由端（15）被焊接在一起，以限定一段修剪 区域（18）；
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