叶轴

When pump starts, the lower impeller lifts the solution up step by step. And the extreme centrifugal force from the enlarged higher impeller stops the solution as it entering the higher impellr. At the same time, the full solution in the chamber stops the air mixed with the solution in the chamber to go down. This way masterly eliminates both big problems of vertical sealless pump, overflow at high pressure and bubbles at big flow.

塑宝SV泵剖面结构SV Super Series Analytical cross section SV泵剖面结构泵开始运转时，底部叶轮将液体逐步上推，待液体进入上部叶轮时，即受加大之背叶的强大阻力而无法上升，但上部叶轮所卷入液体中的空气，却受阻於水室中贮满的液体而无法下降，如此巧妙地排除了立式无轴封泵高压时溢流，或大流量时吸入空气的两大难题。

MS medium equipmented with different kinds and concentrations of phytohormones were used to induce and subcultrue of calli from suaeda salsa L.

mg/ L上培养出盐地碱蓬的无菌苗，然后在 MS基本培养基中添加不同的激素种类及浓度配比，对所培养的无菌苗的下胚轴和叶进行愈伤组织的诱导与继代。

Trees or shrubs, evergreen, branches sympodial, often with terminal rosettes of leaves, armed with stinging hairs.

乔木或灌木，常绿，合轴分枝，通常具顶生的莲座丛叶，具蛰毛的。

Therefore, the constitution of an accurate numerical analysis system for the transonic axial compressor becomes more and more prevalent.

因此，建立一套能够准确分析跨声速轴流压气机流场的分析系统是当前许多叶轮机研究者竭力追求的目标。

A composite rigid shell, with an aerodynamic profile, elongated longitudinally along the span of the blade, one longitudinal end of which is turnable towards a hub of the rotor and includes a blade root, said shell including at least one layer of reinforcing fibres agglomerated by a matrix comprising a synthetic rigidifying resin and laminated upper-surface and lower-surface skins extending from a leading edge to a trailing edge of the blade, each of said laminated skins comprising, from an inside towards an outside of the shell, a film of polyetherimide resin, at least one layer of plies of long and unidirectional fibres oriented substantially along a longitudinal axis of the blade, and at least one layer of fibre fabric, in which the directions of weft and warp yarns are oriented substantially at 45.degree.

复合刚性外壳，与气动的个人资料，拉长纵向沿跨度刀片，一纵年底，这是对回转中心的转子和包括叶根表示，蚬壳，其中至少1层加固纤维烧结由一个矩阵组成的一个综合rigidifying树脂和复合材料层合上表面和低表面皮肤延长，从领先到尾缘的刀片，每个说，叠层皮组成，从内对外界的壳，一个电影聚醚酰亚胺树脂，至少有一个层的层长和单向纤维导向的大幅沿长轴的叶片，并至少有一个层的纤维织物，在该方向的纬纱和经纱是面向大幅在45.degree 。

T30 series of axial fan is a new product developed on the foundation of T30K-4 type. This series is divided into two kinds: the ordinary type, and the open-and-shut type. Its structure is rational, and the intensity of the wind blade is high, so the noise is low and the efficiency is high.

T30系列轴流风机是T30K-4型的基础上研发出的新产品，本系列产品分为普通型和开合型二种，具有结构合理，风叶强度高，噪声小，效率高等特点。

Branchlets, petioles, rachises, and abaxial leaf surface brownish hirsute, hairs 2-3 mm.

小枝，叶柄，轴，和带褐色多毛的叶背面，头发2-3毫米 22 T。 obovatum 毛枝崖爬藤

Branchlets, petioles, rachises, and abaxial leaf surface rusty pubescent, hairs 0.2-0.4 mm.

小枝，叶柄，轴和叶背面锈色短柔毛，头发0.2-0.4毫米 21 T。 sichouense 西畴崖爬藤

Numerical method is utilized to investigate the effects of discrete micro air injection from casing shroud upstream blade tip leading edge on the rotor tip flow in a low-speed isolated axial compressor rotor at the operating condition near stall point.

本文采用数值模拟方法研究了近失速工况动叶顶部前缘附近喷气对低速轴流压气机孤立转子叶顶区域流动的影响。

In this paper, the primary design on the axial-flow fan was completed with the aid of the isolated wing section theory.

本文使用孤立叶型设计法对轴流风机进行了初步设计。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。