压凹：用不着墨的电版或模在纸上压成凹纹效果的方法。是浮雕压印的相反。
Debossing: the process of pressing a recess image using an un-inked block or die on paper or board. It is the opposite of embossing.
差压计锻件可以采用普通开式模锻成形和可分凹模多向闭塞精密模锻成形。
The differential gauge forging can be made by general open die or horizontal split precision closed die.
峰后泊松比与轴向压应力之间的关系可能是一条直线，也可能是上凸的，或上凹的。
It is possible for linear, upwards concave or upwards convex relations between the post-peak Poisson's ratio and the flow compressive stress.
把卡压工具钳口的环状凹部对准管件端部内装有橡胶圈的环状凸部进行卡压。
Align the ring-form concave of pressing jaw with the rim on press-fitting, in groove of which a rubber ring is mounted, and compress it bv pressing tools.
板式盘管或螺旋管是由两片有对应凹槽的平板或凸、凹板对压成型的。
The plate type coiled pipe or spiral pipe is molded by two flat plates with corresponding grooves or a convex and a concave plates which are oppositely pressed.
板式盘管或螺旋管是由两片有对应凹槽的平板或凸、凹板对压成型的。
The plate type coiled pipe or spiral pipe is molded by two flat plates with corresponding grooves or a convex and a concave plates which are oppositely pressed.
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