butt weld ends 对头焊接端
butt-welded with square ends 方头对焊
Butt-welding ends 对焊连接
Unless otherwise specified, all Pacific valves will be supplied with butt weld ends conforming to ANSI B16.25 either Fig. 2(b) or 3(b) depending on the nominal pipe wall thickness of the valve wall.
除非另外指定，所有美国太平洋阀门都配置符合ANSI B16.25标准的对焊连接端口，并根据阀门壁厚和管道壁厚确定是属于型号2（b）或3（b）。
An interface formed by joining the ends of two optical fibers in a coaxial (in-line) butt joint for direct fiber-to-fiber transmission.
为使光纤对光纤直接传输，将两根光纤的端面以同轴对接方式进行连接所形成的一种界面。
To spit out all the butt-ends of my days and ways?
好吐出我的日子和习惯的悉数烟蒂?。
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