spiral phyllotaxis是什么意思

用法例句

Solid axial flow model in a new type reactor is studied in this paper,Single particle is deduced by using the vector analysis under the effection of spiral flight and gravity separately.

着重研究新型反应釜釜内颗粒的轴向流动模型,采用颗粒受力矢量分析确定单颗粒分别在螺旋叶片和重力作用下的轴向运动轨迹,从而求得为保证实现颗粒轴向流动的螺旋叶片结构,为螺旋叶片的合理设计选择提供可靠的理论依据。

The cold rolling with aces of two taper rollers in different planes is so far the most advanced process for the forming spiral flights in the world.

锥辊面冷辗轧是当今世界上螺旋叶片成形最先进工艺。

It makes possible and practicaI the manu-facture of spiral flight and other products with good flexibiiity, high efficiency,and Iow consumptiOn,In this paper,the theoretical study on the processes of cold-rolling with conical rollers.

它利用楔形轧制和异步轧制的若干特点，以构成一个新的轧制过程，提供了高效、低耗和柔性加工钢带和螺旋叶片的可能性和现实性。

Finite element analysis of stress field for spiral vane of newly developed reactor;

新型反应釜釜内螺旋叶片应力场有限元分析

The spiral vane is a basic component of spiral machine.

螺旋叶片是螺旋机械的基本构件,由于它具有特殊的空间曲面形状,因而加工制造困难。

When the spiral vane spreads on a lead which is less than one,an expansion map for the whole lead must be drawn and the expansion map must be accurately segmented.

针对螺旋叶片在小于一个导程上展开时必须画出全导程的展开图,并对展开图需要准确切分的缺点,结合工作实践,给出了任意高度圆柱螺旋线弧长的计算公式,基于此公式得出的螺旋叶片的展开方法适用于在任意高度上对圆柱、圆锥螺旋叶片的快速展开。

Pulling forming method of helical vane;

螺旋叶片的拉伸成形方法

Cold-drawing forming method of helical vane combination;

螺旋叶片组合冷拉成型法

Shearer drum helical vane's figuration includes cutting, pressing and sealing, at the same time the cutting is one of the most important procedure.

采煤机滚筒螺旋叶片的成形主要包括下料、压制和焊接等过程,其中下料是最重要的环节之一。

According to the characteristics of the wear failure of the screw blade, this articlemakees a detailed analysis about the blade operations, qear conditions, wear mechanism and themam factors affecting the blade wear.

根据螺旋叶片磨损失效的特征，对叶片的运行工况、磨损条件、磨损机理和对磨损的主要因素作详细分析，推导出在特定磨损条件下对叶片材质的具体要求，从而合理选材。

It emphatically introduced a design process of two important parameters-the screwing up angle of the screw blade and the pitch.

以ZYR-1200煤矿用全液压钻机用螺旋钻杆为研究对象,重点介绍了螺旋钻杆2个重要参数—螺旋叶片的螺旋升角和螺距的设计过程。

Analysis of the working performance of helical blade hydraulic pump;

螺旋叶片式液压泵工作性能分析

In order to meet the demands of production technology and achieve rational filling quantity and rate, stabilize the filling process,the author described the following items to be improved:thread pitch,diameter of helical blade, diameter of belt roller,cone belt of charge

介绍了改造加料机的螺距、螺旋叶片直径、皮带轮直径、三角带等以适应工艺要求,得到合理的加料量和加料速度,确保工艺的稳定,满足生产要求。

sectional flight conveyer

分组螺旋叶片式输送器

spiral valve tray

带螺旋叶片的浮阀塔板

New practical calculation methods for helix blade material drawing

自制螺旋叶片下料的实用计算新方法

Vibration-prevention Lathing Process for Long Shaft Circumference of Tapered Spiral Blades

锥形螺旋叶片长轴外圆防振车削工艺

Design of Helical Blade Die for Concrete Mixing Truck With Three Dimensional Method

三维法设计混凝土搅拌车螺旋叶片压模

Three Dimensional Molding for the Helical Blades of the Concrete Mixing Truck Base on PRO/E

基于PRO/E的混凝土搅拌车螺旋叶片三维造型

Cutting and Precision Form of Helical Vane of Shearer Drum

采煤机滚筒螺旋叶片的下料及辗压成形

Research on the Theories of Taper-rolling Process of Endless Spirals and FEA Simulation;

连续螺旋叶片锥辊异面轧制过程的有限元模拟与成形规律研究

Simulation and optimization of the stamp forming of multi-curvature component based on orthogonal experiment

基于正交试验的螺旋叶片冲压成形模拟优化研究

PRO/E three dimensional design of spiral blade on concrete mixer truck mixing drum

混凝土搅拌运输车搅拌筒螺旋叶片的PRO/E三维设计

the whirl of the propeller blades

螺旋桨叶片的旋转.

adjustable blade

可调叶片可调螺旋桨叶

adjustable blade propeller runner

可调叶片式螺旋浆转子轮

Manufacturing and Forming Technology of the Blade of a Screw Conveyer

螺旋输送装置叶片的制造及成形工艺

Screw Centrifugal Pump Vane Variable-pitch Design and Numerical Simulation;

螺旋离心泵的叶片变螺距设计及数值模拟

bistable trigger element

双稳(态)触发元件[触发器](螺旋桨)叶素，叶片

Leaf emergence was checked, and a considerable portion of the leaf was crushed in a close spiral.

叶片抽出部分被抑制、且紧闭的螺旋状叶片大部分产生破裂。

blade, for gas turbines (excl. turbopropellers)

叶片，用于燃气轮机（不包括涡轮螺旋桨发动机）