- 马鞍形: saddle-shaped; the shape of ...
- 三通: triplet; tee; tee joint; wye ...
- 马鞍形三通管: saddle tee
- 马鞍形: saddle-shaped; the shape of a saddle; a falling-off between two peak periods◇马鞍形车床 gap-bed lathe; 马鞍形锅炉 [房] saddle boiler
- 叉形三通: fork shaped tee; fork-shaped tee; y-branch fitting
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