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Second, a 3D unsteady-state numerical model of heat transfer in laser circular cutting of pipe was set up for the first time, and the kerf width, the cut front profile, the temperature field and the heat affected zone were calculated by using the model.

其次，首次建立了管材激光圆周切割传热过程的三维非稳态温度场计算模型，并计算了不同管径和切割速度条件下的切缝宽度、切割前沿及其相邻基材的温度场和热影响区大小。

The results showed that with the increasing of repetition frequencies, power density, and pulse width of laser beam and with the decreasing of scanning speed, the kerf quality could be improved. Besides, a formula of estimating the kerf surface roughness was also presented, which can explain the experiment results well.

在加工电子行业中表面组装用的模板时，一般采用化学刻蚀法，其缺点是加工精度低、工序多、周期长，特别是受刻蚀因子的限制，模板的最小缝隙宽度不能低于模板厚度的 1 2 ，因而难以满足日益发展的微电子技术对电子线路制作精度的要求。

With longger fruit and more key fruits,moreover, the two traits showed significantly positive correlation (r=0.888). Of the 11 floral and fruit quantitative traits, the length and width of perianth segment and 6 other traits were different significantly among the three groups,which were successfully used in group-discrimination by means of the method of principal component analysis.

在所研究的11 个花果数量性状中，花被片长度和宽度等10 个性状在三大类群间差异极显著，主成分分析结果表明第1 主成分(贡献率69.11%)综合了各性状的主要信息，依据第1 主成分可以对三大类群进行区分，其中北美鹅掌楸类群第1 主成分值最大(变幅0.7156～1.3916，平均1.0408)，杂交鹅掌楸类群(变幅-0.0865～0.3959，平均0.2646)居于两个亲本类群之间，鹅掌楸类群(变幅-1.5443～-0.8855，平均-1.2426)最小。

All input and output bore aiameter,length and width of keyway can be machined with user's requirements.

订货：所有传动形势的输入与输出孔径大小，长度及健槽尺寸均按用户要求加工。

The kinetic theory based two-fluid model was used to simulate 2-dimensional fluidized beds with the width of 0.2 m, 0.4 m and 0.8 m,respectively, covering regimes from bubbling to turbulent fluidization.

应用基于颗粒动理学的双流体模型系统地对床宽分别为0.2、0.4、0.8 m的二维流化床在鼓泡区和湍动区的气固两相流动行为进行数值模拟。

This design proposal is the prestressed reinforcement concrete conatant cross-section box shape continuous bridge, Main span disposal is 45+45+45m, the bridge floor width is 28m, the king post uses is the single box single room.

本设计方案为预应力钢筋混凝土等截面箱形连续梁桥，主桥布置为45+45+45m，梁桥面宽28m，采用单箱单室梁。

King-sized Bed – A bed that measures 76" in width and 80" in length.

王大中床-一张床措施7 6条"，在宽度和8 0"长度。

The OA kneepad with PIC16F630 microcontroller core can control the output signal frequency, pulse width, intensity and work time by controlling keyboardbuttons.

1 以PIC16F630单片机为系统控制核心的OA护膝，可通过键盘按钮控制输出信号的频率、脉冲宽度、强度和工作时间。

Development of OA kneepad : The kneepad density-wave output can be controlled by 2Hz different frequencies to 300 Hz stimulation pulse component, the pulse width of 100 to 150 μ s between the positive and negative output symmetry to the stimulation pulse. The rechargeable mobile phone batteries ( 3.7V) were served as power supply and SCM as timer with automatic shutdown after 30 minutes.

OA护膝的研制：护膝输出的疏密波可控制由2～300Hz不同频率刺激脉冲组成，脉冲宽度在100～150μs 之间，输出正负向对称的刺激脉冲，采用可充电的手机电池(3.7V)供电，单片机定时，30min 自动关机。

The knothole width should choose of appropriate, concrete knothole thickness general take 1 m as unit.

板的宽度应选的适当，混凝土板的厚度一般以1m为单位。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。