扭转的

For diameter 26mm axle bar of CK45 steel,when surface hardness is 54～ 62HRC,core maximum hardness is 32HRC and case depth is 3.8～5.3mm,it has an optim um combination of strength and ductility .

对φ26mm CK45钢轴杆，当表面硬度为54～62HRC，硬化层深度为3.8～5.3mm，心部硬度＜32HRC时，轴杆具有最佳的强韧性，获得了较高的静扭强度和扭转疲劳寿命。

On the basis of studying the mechanism of the self-excitation vibration and the helix lobes of the cylinder in the well logging tool during deep-hole boring, th e influence of the length of the guide pads on the torsion deformation and stabi lity of the boring cutter is analyzed.

在论述深孔镗削加工过程中自激振动和螺旋沟产生的机理后，分析了石油测井仪器筒体深孔镗削加工中导向块长度对镗刀扭转变形和稳定度的影响。

The torsion theory in composite material box beam structure has been deduced and thecorresponding finite element pattern has been reached.

对复合材料箱型结构的扭转理论进行了推导，得出了相应的有限元格式。

The behavior of a double cell concrete box girder is studied by means of finite element method and experiment.

通过对国内某跨海公铁两用大桥的有限元分析和梁墩固结处缩尺模型试验，研究了单箱双室砼梁在各种荷载下的应力分布以及扭转和剪滞效应等问题，为设计施工提供了依据。

The formulation of design sensitivity of natural fnequencies and frequency response function is derived with respect to design parameters induding stiffness of shafts, average gear meshing stiffness, damping constant and inertia of gears etc.

推导了系统扭振固有频率及频响函数相对于设计参数的灵敏度计算公式，这些设计参数可以是轴的扭转刚度、齿轮平均啮合刚度、阻尼及齿轮转动惯量等。

Considering the restrained torsion, we can analyze the lateral vibration of double-line or multiple-line railway bridges under unbalanced loads with the model.

由于考虑了箱梁的约束扭转，该模型能够分析复线或多线铁路桥在偏载作用下的横向振动问题。

If an intermediate gear is introduced between the driving gear and the driven gear,the rotation of the driven gear will be reversed.

4如果一个中间齿轮之间的介绍传动齿轮和从动齿轮，旋转的齿轮将得到扭转。

The products can substitute solid clay bricks, avoid damage to the earth, curb the emission of CO2, and protect the environment and farmland. Other special characteristics include being light weight (about 1/3 of a double side plastering wall), having a thickness of 9 to 12 cm, having fire resistance and thermal insulation (A-level non-combustible insulation material), being convenient for construction (plate-type assembling and dry construction), and being cost effective (An enclosure wall of this material can reduce construction costs by 15% to 20%). It has advantages over solid clay bricks in terms of weight, energy-saving capacity, recycling and environmental protection.

产品不仅可以替代实心粘土砖，扭转烧砖毁地局面，遏制CO2的排放，保护环境和耕地，而且具有自重轻（约为双面抹灰墙的1/3）、墙体薄（厚9~12M）、防火与保温、施工便捷（采用板块式拼装、干式作业）、投资省（利用其作为建筑围护内外墙，可节省建筑投资10%~15%）等特点，在&轻质、节能、利废、环保&等方面均优于实心粘土砖。

Twists can be done with passive abdominals and active abdominals — the effects of these modalities are different.

完成扭转可以基于被动或主动的使用腹肌——不同形式所产生的效果也有所不同。

This was a reversal of previous denials by the London government that CIA flights had landed on British territory.

这是一个扭转以往的否认，由伦敦政府认为，美国中央情报局的航班已降落在英国领土。

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％。