• 1. perforation plate: 穿孔板 | 匀浆板 | 多孔板
• 2. scalariform perforation plate: 梯状穿孔板
• 3. ephedroid perforation plate: 麻黄式穿孔板

更多释义

• 1.Results show that the acoustic system of micro perforation plate can effectively reduce discharge noise.
  试验表明，微穿孔板吸声结构可有效地降低排气噪声。
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• 2.The results of this study can offer some perforation plate and acoustic absorbing body design reference materials for the acoustic engineers and architects.
  本文的研究结果可为声学工程师及建筑师提供穿孔板和吸声体设计的参考资料。
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• 3.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。
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