inner punch

基本解釋

The quality of the internal surface can be greatly improved and the punch force can be significantly reduced by using inner set hose.
內置軟管可以有效改善管材的內表面質量，并顯著減小沖頭推力。
For the defects such as dead zone and shrinkage cavity in conventional extrusion process, an inner cone punch was proposed to improve the metal flow behavior.
針對平模擠壓過程中易產生死區(qū)、縮孔等流動缺陷，設計一種帶內錐沖頭用以改善成形過程中金屬的變形流動行為。
But, Young says, when one worker is greeted with a polite how-do-you-do while the guy next door gets a playful pretend-punch, it's clear in an instant who is in the inner circle and who isn't.
但是史蒂芬楊說，當一位工作者是以禮貌的問候被接見，隔壁的工作者則是不被當作一回事看來，立即就能明顯得知誰較受重用。