spiral ring

Valves in these classes are also available with spiral wound or ring joint gaskets when specified.

如果用户要求,这些压力等级的阀门也可提供螺旋盘绕或环连接垫圈.

The Discussion of Necessary about Pressure Test on Metallic Spiral Case and Stay Ring

关于金属蜗壳和座环打压试验必要性的讨论

Stress Analyses of the Spiral Case and Stay Ring with Consideration of Loading Subjected by Concrete Foundation

蜗壳座环与混凝土基础联合受力应力分析研究

Performance Analysis of the Spiral Groove Floating Ring Seal Based on CFD Analysis

基于CFD方法的螺旋槽浮环密封性能分析

Numerical simulation of three-dimensional turbulent flow through a turbine spiral casing with stay ring and guide vanes

混流式水轮机蜗壳与座环三维中湍流场的数值模拟

The results showed the voidage ratio of taper spiral packing,θ-ring packing and metal gauze corrugated packing was 0.823:0.947:0.855, and under the same liquid sprayed density, the pressure drop ratio of unit height of packing layer was 0.58:1.10: 0.62.

流体力学性能测试中，锥度螺旋填料、θ环和丝网波纹填料三种填料的空隙率之比为：0.823：0.947：0.855时，在相同喷淋密度下，单位高度填料层压降之比却为：0.58：1.10：0.62。

A screwdriver is used to remove the spiral seat retainer ring from its groove.

采用一把螺丝刀从凹槽中拆卸螺旋阀座定位器环.

Test results show that the design requirements of the spiral groove movable ring can be met with MEMS and chemical milling technology.

结果表明，采用标准MEMS光刻工艺技术和化学铣切工艺技术，可加工出满足设计要求的螺旋槽动环。

The Specialties of Spiral Case and Stay Ring of Turbine for Lianhua Power Station

莲花水电站水轮机座环及蜗壳的特点

Optimal Design of Spiral Casings and Ring Shaped Supports for Large Hydraulic Turbines Optimal Construction Design for Head Cover and Support Cover of Large Hydraulic Turbines

大型水轮机蜗壳和座环结构优化设计的研究大型水轮机顶盖、支持盖优化计算中的几个问题

The variational analysis of spiral case and stay ring's strength.

蜗壳座环强度的变量化分析。

Basing on the technique of variational analysis, this paper presents how plate thickness and geometry of spiral case and stay ring influenced its strength.

变量化分析是以参数化技术为基础的结构分析工具，它只需经过一次分析就可以获得设计变量在给定范围内变化时对结构性能的影响。

The strength and rigidity analysis of the spiral case and stay ring concerning the concrete.

蜗壳座环联合受力情况的刚强度情况。

A new intuitional diagram, spiral ring, is obtained by this method and its attributes were studied.

并得到一种新的直观图&螺旋环，研究了螺旋环的性质；

This paper introduced principle, process, characteristics and controlling deep slot of spiral groove movable ring of photoetching in the liquid hydrodynamic seal. The new method of high-energy ions etching spiral groove movable ring was put forward.

主要介绍了流体动力密封螺旋槽动环光刻工艺的特点、原理、工艺过程、工艺流程、槽深控制方法以及应用情况，提出了采用高能束流刻蚀螺旋槽动环的新途径。

The secondary structure of above eight protein are predominantly hybrid structure of alpha helical and spiral ring structure.

以上8个蛋白的二级结构均以α-螺旋和螺环结构为主的混合型结构。