Manglietia species all have scalariform perforation plates, only a few also have simple perforations.
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。
In contrast, most of the Michelia species possess scalariform perforation plates and only one with simple perforation.
含笑属植物的导管分子大多具有梯状穿孔板，仅有一种可看到单穿孔板。
Results There were 3 types of vessel elements, scalariform vessel, reticulated vessel and pitted vessel, the perforation plates were simple perforation plate.
结果茵陈蒿具有梯纹、网纹和孔纹3种类型的导管，穿孔板类型为单穿孔。
Methods 65 cases with duodenal ulcer perforation were operated on simple closure with open or laparoscopy.
方法采用在腹腔镜下或开腹单纯修补术治疗十二指肠溃疡穿孔病人65例。
For a long time, perforation is Just regarded as the last simple process in drilling.
长期以来，射孔被认为是钻井工程的最后一道简单工序。
The present invention provides a laser perforation device that has a simple structure and with which pain to a person in skin perforation is reduced.
本发明提供激光穿孔装置，其能够以简单的结构减轻皮肤穿孔时的疼 痛。
A simple polynomial regression for experimental data shows that main flow velocity and perforation flow velocity are main factors resulting in mixture loss under given conditions.
实验数据的回归结果表明，在本实验条件下，主流流速和孔眼流速是造成混合损失的主要因素。
Objective To promote care in the temporal muscle graft to repair the injury caused by the media or the simple success rate of tympanic membrane perforation.
目的手术护理可促进颞肌筋膜移植修补由外伤或单纯性中耳炎所致的鼓膜穿孔的成功率。
Objective To promote care in the temporal muscle graft to repair the injury caused by the media or the simple success rate of tympanic membrane perforation.
目的手术护理可促进颞肌筋膜移植修补由外伤或单纯性中耳炎所致的鼓膜穿孔的成功率。
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