三轴的

Design and adjustment of the coaxial three-mirror optical system used in field bias.

一种离轴使用的同轴三反射系统的设计和装调。

Physical model of three-dimensional half axis rotor of 110 MW air inner-cooled turbo-generator was established, which included the rotor end, axial ventilation ducts and sub slot ventilation ducts. The rotating turbulence flow field was simulated numerically based on the finite volume method. The air velocity and flow rate distribution characteristics of the rotor end, axial ventilation ducts and sub slot ventilation ducts were analyzed.

建立110 MW空内冷汽轮发电机转子冷却通风道一个槽(包括端部、轴径向及副槽)的半轴向段三维物理模型，并基于有限体积法对该物理模型进行旋转湍流流场数值模拟，分析了端部、轴向段和副槽通风段的空气速度、流量分布特点。

Three axes are of equal length and are symmetrically placed in one plane, and the fourth axis is perpendicular to the others.

三个轴是有相等的长度并且被相称性地放在一个飞机之内，而且第四个轴与其余者成垂直。

A large trunnion or trunnion support design ensures central positioning under the highest working pressure. The trunnion mounted ball permits ease of operation.

三片式阀体设计大枢轴或枢轴板设计确保在高压下正确的中心位置，固定球结构保证阀门良好的操作性能。

Unobscured all-reflective system This dissertation details the unobscured all-reflective telescopes with two or three mirrors.

离轴反射系统研究本文对离轴两镜和三镜反射系统作了全面的研究。

Comparing with common side hybrid laser-arc welding, coaxially combined laser beam and arc can provide a symmetrical circular thermal source on the workpiece surface, which is convenient for 3-D welding.

与目前常用的旁轴激光-电弧复合焊相比，激光-电弧同轴复合可以在工件表面提供对称热源，焊接质量不受焊接方向影响而适于三维焊接。

Results Under our experimental conditions, three kinds of NO donors when in lower concentrations could not cause obvious changes of axons while when the concentration of DETA NONOate was doubled, it could induce the non-selective demyelination and Wallerian degeneration of both sensory and motor nerve fibers.

结果：在本实验条件下，应用三种NO供体的低浓度，都不能引起大鼠坐骨神经轴突的改变；将DETA NONOate浓度加倍则可导致轴突脱髓鞘和沃勒变性，但对有髓鞘纤维和无髓鞘纤维并无选择性作用。

The torsional distortion and the torsional rigidity of the cross axle type universal shaft are calculated by using the three-dimensional finite elements method.

运用三维有限单元法对十字轴式万向联轴器的扭转变形和扭转刚度进行了分析计算。

In laser refabrication, 3D coaxial feeding head is the most important and key part which affected on the quality of cladding.

此三维送粉头实现的转角大，具有全方向性。Z轴转角：0°—360°；水平轴转角：-90°—+90°。

Repair List) The clearance between the tailshaft and stern tube to be measured before and after repair, and records in three copies to be handed over to the chief engineer.

修理单在修理前后，尾轴和尾轴管之间的间隙需测量，记录一式三份交给轮机长。

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％。