butt-end

基本解釋

All valves are to be supplied with butt-weld end connections as specified.
所有截止閥按要求為對焊端連接。
The injuries were such as might very well have been inflicted by the butt-end of his son's gun, which was found lying on the grass within a few paces of the body.
從傷痕看，武器很可能是他兒子那桿槍的槍托，那枝槍躺在草地上，離尸體不過幾步遠。
Controlled burning significantly improved the growth of the diameter at butt-end and its current annual increment, and the growth of the height and its current annual increment.
對五年生杉木幼林的樹高生長及其連年生長也具極顯著的促進效應。