木莲属的所有种中都有具梯状穿孔板的导管分子，但在少数种中偶然可见到单穿孔。
Manglietia species all have scalariform perforation plates, only a few also have simple perforations.
一种散热鳍片穿孔涂布工具及涂布方法，该工具为一灌入有导热介质的 中空管体，而在管体的一端周缘上设有数个出料孔，并在邻近该出料孔的下 方周缘处环设有具弹性的刮板；
The related perforating coating tool for a heat-conducting fin comprises: a hollow tube filled with conductive medium, some discharge holes on one end of the tube, and a spring scraper under the hole.
其中，上述穿孔机构800，是在冲头用金属模 具820和冲模用金属模具830之间的空隙G大于薄板状加工对象W 的厚度状态下实施穿孔的穿孔机构。
The punching mechanism (800) performs punching in a condition where a gap (G) between the punching die (820) and the dieing die (830) is greater than the thickness of the sheet-like object (W).
应用推荐