spool piece

基本解釋

Check valve and butterfly valve combinations are very popular; normally a short spool piece is required between the valves.
止回閥與蝶閥的連接是經(jīng)常發(fā)生的事，通常需要在這兩種閥門之間加上一節(jié)短短的閥槽。
Items that are not compatible should be removed from the system and replaced with a blank, valve, spool piece, or temporary jumper hose.
不配伍的任何零件應(yīng)從系統(tǒng)中移開并以間隙、閥、管段或者暫時(shí)的跨接軟管替代。
The product is portable and flexible. There are receding groove every one inch in the steel column, assembling with protruding coil of spool piece.
輕便靈活，鋼柱每隔一英吋凹入溝圈與接管片凸出線圈配合組裝。

Besides the vegetables, they held a piece of bread, a pocketknife, sometimes the Alpine Club guidebook, and always a spool of wire for emergency repairs.
NEWYORKER: Bear Meat