刚性

Since the model of the canopy and suspension lines are made of flexible fabric, therere some difficulties in wind runnel testing, Such as model supporting, attitude controlling and measuring, and pitch moment measuring etc., compared with the common rigid models used in wind tunnel testing.

由于翼型伞主要由伞衣、伞带等柔性纺织物组成，其风洞试验技术与采用刚性模型的常规风洞试验相比，在试验模型的支撑、模型姿态角控制及测量、作用在模型上力矩的测量等方面都有一定的技术难度。

In this paper by use of a new differential operator similar as one introduced by Cheng and Yau,we obtain a rigidity result for a compact submanifold of constant scalar curvature in a unit sphere.

宣满友 ，盛为民本文利用一个类似于Cheng和Yau引进的微分算子的新微分算子，得到了单位球面中常数量率的紧致子流形的一个刚性结果。

In this article,we mainly study the space-like submanifolds with parallel mean curva-ture vector,constant scalar curvature or constant square length of the second fundamental form,respectively.We obtain some pinching theorems and rigidity results by estimating Laplace of the square length of the second fundamental form of the such submanifolds and using yaus maximum principle or Stokes Theorem.

本论文主要研究de Sitter空间中具有平行平均曲率向量、常数量曲率或第二基本形式模长平方是常数的三类类空子流形，并通过分别估计三种情形下子流形的第二基本形式模长平方的Laplace，利用Yau的极大值原理和Stokes定理，获得了这些子流形的一些拼挤定理和刚性定理。

In the structural mechanics method, elastic thin wall column shell and thin slab theory is used in the computation, and consider two rigid conjunctions, adopt underground frame bending moment allotment method to admeasure the wall of a well and the scaleboard bending moment.

常规的结构力学方法使用弹性薄壁圆柱壳和薄板理论计算调压井井壁与底板，并考虑二者刚性连接，采用地下框架弯矩分配法对井壁和底板进行弯矩分配。

California's 33 prisons, with about 168,000 inmates, many of them locked up because of inflexible sentencing laws passed by voters, are scandalously overcrowded.

加州33座监狱关着16万8千个囚犯，人满为患，很多都是因为选民通过的刚性判决关进来的。

The platform structure is connected to the sea-bed template by tendons which are kept in ten-sion under all conditions by the excess buoyancy over weight of the platform.

张力腿平台是一种复合型的海上平台，在竖直方向为刚性，但在水平方向显示柔性。

In one hand, the liquidity preference of those nations without international currency issuance rights has reversed by the rise of their economic strength; on the other hand, the nations with international currency issuance rights have the rigid needs to release extra liquidity due to the upgraded competition for international seignorage.

一方面，不具备国际货币发行权的国家因无法获得外部融资而导致的强烈的流动性偏好已经因自身经济实力的积累发生了逆转，另一方面，掌握国际货币发行权的国家却因国际铸币税争夺的升级有着多释放流动性的刚性需要。

Some new methods to improve drill pipe's angular deviation precision were given. One method was to use a flat-pyramidal welding structure so as to reduce the torque peak. The other method was to use the all-floating clamp to enhance stiffness of the self-centering clamp so

提出了改善钻杆惯性摩擦焊接角偏差的新方法：采用平面—锥面焊接结构，削减初始扭矩峰值；采用全浮动夹具并增大定心夹具刚性以及时纠正工件径向位移。

Second, invest in the control of scale, based on scientific prediction type of rigid self-occupied housing demand, commodity housing space to maintain a steady supply of a certain amount.

二是在控制投放规模的基础上，科学预测自住型刚性住房需求，保持商品住房用地一定量的稳定供应。

So the preset capital price will course international trade balance lose the ability of self-poise, and trade imbalance will be a long-run environment of economic growth.

在国际资本流入并不带来生产函数的变化以及其收入全部汇回母国的假定下，国际直接资本流入并不对东道国经济增长以及收入分配的模式产生实质性影响；本文将国际间接资本流动视为贸易不平衡的表现，由于资本边际报酬的刚性，国际贸易将不存在自动维持平衡的机制，因此经济增长将可能在持续贸易不平衡的环境下进行。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。