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Only vessels were observed in Selaginella sanguinolenta and Selaginella pulvinata, including two types of scalariform perforation plates and reticulate-scalariform perforation plates. 圆枝卷柏、垫状卷柏仅观察到导管，有梯状穿孔以及网状-梯状混合型穿孔2种类型。
Scalariform perforation plates; 4梯状穿孔；
scalariform perforation plate 梯状穿孔板
There were two types of vessel perforation plates, simple perforation one and scalariform plant. 一端是梯状穿孔板,另一端为孔纹增厚的导管;
Comparative studies of perforation plate structures of vessels in Ranunculaceae. 毛莨科植物导管穿孔板结构的比较观察.
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。
Perforated plates correspond to heterogeneous media. 多孔板相当于均匀介质。
The study of the stem's secondary xylem of Rhus chinensis Mill reveals that perforation plate is simple perforation plate. 对盐肤木茎进行木材解剖学研究,发现其导管分子穿孔板为单穿孔板。
A packed bed of granular material sandwiched by two perforated plates, is a good distributor. 两块孔板中间填有一层颗粒物料，是一种很好的分布板。
"In making pasta, semolina dough is rolled out and sliced or compacted and forced through perforated plates (dies) that form it into the desired shape. 在制作过程中，粗粒小麦粉被揉成面团，并通过模子挤压成带状、线状、管状和种种特殊形状。
The plates and bowls have a gilt edge. 这些盘子和碗镀有金边。
It is demonstrated that the use of the perforated plate affords a high level of gas holdup,especially at higher superficial gas v... 结果表明,多孔板分布器加入后淤浆床内的气含率较高,这种差异在较大表观气速下尤为明显,同时床内的流动变得均匀。
Can I fasten these metal plates with rivets? 我可以用铆钉把这些金属板固定在一起吗？
scalariform perforation 梯状穿孔
She put some plates in the sideboard. 她往餐具柜里放了些盘子。
A kind of plastic stuff is used to make the plates. 这些盘子是用一种塑料制造的。
Advance Technology (DG) Machinery Co., Ltd., as a branch of Advance International Trading Co., is a professional manufacturer of perforated plates, machining components and hardware fabrication. 瑷迪旺斯（东莞）精密机械有限公司是瑷迪旺斯国际集团的分支企业，是加工机械零、配件，冲孔网板和冲压件的专业生产厂家。
The design program has been introduced with a perforated plate distributor in a molecular sieve adsorber of a small scale air separation unit as an example. 以小型空分设备分子筛吸附器的孔板分布器为例，通过例题演算，介绍了设计程序。
Cymbal is a pair of round brass plates. 铙钹是一对黄铜圆盘。
Mother is washing up the plates in the kitchen. 妈妈正在厨房清洗盘子。