叶长宽比、P/S的比值、表皮厚度与气孔器密度无明显差异。
There was no significant difference in LL/LW, P/S, epidermal thickness and stomatal density along the elevation gradient.
结果表明，表皮细胞形状、垂周壁式样及气孔器类型具有重要的分类学意义。
We found that the shape of the epidermal cells, the pattern of anticlinal walls and the types of stomatal apparatuses have much taxonomic importance within the genus.
用光学显微镜和扫描电镜对合意非洲铁羽片表皮及气孔器的发育过程进行观察研究。
The ontogeny of pinna epidermis and stomatal apparatus in Encephalartos gratus Prain have been observed with LM and SEM.
叶部表皮的表皮毛和气孔器明显增多、叶肉细胞排列较对照结构疏松且细胞间隙大。
Additionally, the Numbers of stomata and trichomes on the leaf lower-surface increased, and mesophyll cells were looser arranged and its intercellular space was larger.
染色体倍性提高，气孔保卫细胞的大小及其中叶绿粒数目增加，而气孔器密度减小。
With the increase of chromosome ploidy, the size of stomatal guard cells and the chloroplastid Numbers were increased, accompanied by the decrement of stomatal density.
测定出叶片表皮细胞、角质层和厚角组织厚度，表皮毛、气孔器和叶内组织的类型、大小等；
Ascertaining by measuring the blade, cuticle cell, cuticle and collenchyma's thickness. The type and the size of epidermis cell, epidermis hair, stomata apparatus and inside blade tissue;
互花米草、狐米草和大绳草的表皮均由长细胞、短细胞（栓质细胞和硅质细胞）、盐腺和气孔器组成。
The epidermis of culm of S. alterniflora, S. patens and S. cynosuroides is all made up of long cells, short cells (cork cells and silica cells), salt glands and stomatal apertures.
菖蒲属叶上下表皮特征基本一致，细胞形状为长方形或近菱形，气孔器平列型，成纵行与叶脉平行排列；
In Acorus both upper and lower epidermis cells are rectangle or rhombus, and the stomata apparatus are paracytic and arrange in rows along the veins.
现代针叶树气孔器的研究为鉴定化石气孔器奠定了基础，对第四纪植被变化和古气候的研究起着很重要的作用，是第四纪孢粉学的一个重要补充。
The study on the morphology of stomata of conifers is the foundation of identifying fossil stomata that is important for the study of the change of vegetation and climate.
光学显微镜下观察了菖蒲属2种和天南星科花烛属、麒麟叶属、龟背竹属、广东万年青属、花叶万年青属5个较原始属的5种植物的叶表皮细胞及气孔器的特征。
Characteristics of leaf epidermis cells and stomata apparatus of 2 species in genus Acorus and 5 species belonging to 5 genera in Araceae were observed under the light microscope.
使用除尘器清理笔记本电脑的排气孔。
所述的吸气孔可以根据吸尘器的功率设计合适的大小（即槽宽），使风力集中，能高效除尘；
Appropriate size (namely groove width) of the dust absorption pore is designed according to power of the dust remover to centralize wind power and remove dust with high efficiency.
在拉速提高的条件下，必须优化结晶器内流场以适应稳定生产的需要，防止气孔、拉漏等铸坯缺陷的产生。
Fluid flow in the mould must be optimized in order to improve the internal and surface quality of the slabs while increasing the casting speed.
高粉尘环境下工作的减速器，经常因其上的通气器通气孔堵塞（短时间内）而引起漏油现象。
Oil leakage often occurs in reducer due to its blowhole of ventilator jams for a short time while reducer operating under excessive dust condition.
本文叙述了用真空紫外光谱方法观测HL - 1装置常规、器壁碳化和抽气孔栏三种放电条件下等离子体杂质的变化以及某些杂质的特性。
Some properties of the impurity in the HL-1 tokamak are studied by the VUV spectroscopic method under different discharge conditions: regular, with wall carbonization and with a pumping limiter.
利用它对国产OFPI—220型SF_6断路器进行的计算结果表明，改变动触头排气孔位置及电弧对动触头内腔中气体的热效应可明显提高开断电流时灭弧室压力上升速度。
The results show that the position of the exhausting gas hole and the arc heat effects on the gas inside the hollow moving contact have obviously raised the pressure rising speed.
本文描述了HL-1装置器壁碳化和采用抽气孔栏时，氢及杂质通量的变化情况；
In this paper, the behaviour of hydrogen and impurity flux in the HL-1 tokamak with wall carbonization and pump limiter is presented.
浮子室通气孔的效用是补偿空气滤清器阻塞的影响。
The purpose of the float-bowl vent is to equalize the effects of a clogged air cleaner.
提供一种在显示区包括排气孔的平面显示器。
A flat display panel comprising exhaust holes in a display region is provided.
断路器壳体(4)包括构造为排出电弧气体的一定数量的灭弧室气孔。
The circuit breaker housing (4) includes a number of arc chute vents structured to exhaust arc gases.
该设备向有载分接头转换器连续地提供氮气，并具有通气孔，以保持略高于极端气候条件范围的超压。
The apparatus applies a continuous supply of nitrogen to the load tap changer, and has an orifice to maintain a slight overpressure over an extreme range of climatic conditions.
本发明公开了一种微型预混催化重整燃烧器，燃烧器本体从上至下设置进气孔、预混腔、燃烧腔和排气孔；
The invention discloses a miniature premix catalytic reforming combustor. A combustor body is provided with air inlets, a premix chamber, a combustion chamber and an air outlet from top to bottom;
本发明公开了一种微型预混催化重整燃烧器，燃烧器本体从上至下设置进气孔、预混腔、燃烧腔和排气孔；
The invention discloses a miniature premix catalytic reforming combustor. A combustor body is provided with air inlets, a premix chamber, a combustion chamber and an air outlet from top to bottom;
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