变换伽辽金法对具有梯形截面脊形光波导的本征模式特性作了分析。
The mode dispersion characteristics and cut-off properties of rib waveguide with trapezoidal cross section are investigated.
这一结论有利于简化梯形截面脊波导的设计，提高实际器件的精度。
This will simplify the designing of trapezoidal-cross-sectioned rib waveguides and increase the precision of practical device.
它包括有矩形截面的曲线缝和折线缝，梯形截面的曲线缝和折线缝。
The device comprises the curve seam and the fold line seam which have rectangular sections and the curve seam and the fold line seam which have trapezoidal sections.
本文介绍了用广义坐标法推导的梯形截面箱梁约束扭转计算的基本微分方程；
Using the generalized coordinates method, fundamental equations for the restrained-torsion of thin-walled box girders of trapezoidal cross section are derived.
归纳出斜拉桥中此类双箱单室倒梯形截面的应力分布特点及薄弱环节，并提出优化措施。
The disadvantages of twin-box single cross hammerhead sections of cable-stayed bridge were also indicated. By the result, the optimum measures were proposed.
“屋顶的梯形截面是通过定制设计的，匹配了屋顶内表面的曲率，以避免任何无谓的粉刷工作，”该团队说。
"The roof's trapezoidal sections were custom designed to fit the desired curvatures of the inner surface of the roof in order to avoid any fake stucco work," added the team.
梯形梁延伸到整个大桥，主要是为保护密封焊接空心截面不被腐蚀。
The beam web, which extends over the entire bridge, is built of a trapezoidal, for reasons of corrosion protection hermetically welded hollow section.
浇道位置为环形浇道，横浇道设计成扁梯形横浇道，内浇道截面面积根据公式求取。
Ring pouring channel was set for pouring position. Ladder-like horizontal gate was designed for horizontal gate. Section area of ingate was calculated by the equation.
研究表明，窄缝内横截面中心线上的速度呈梯形分布，窄边附近流速较低，中间高；宽边完全加热时，流体不足以带出加热板发出的热量，使得角部出现热集中现象；
The results reveal that the velocity of the center of cross section is trapeziform, the velocity of about narrow side of the channel is lower, but the velocity of center is high;
针对细胞微超声振动切割系统对超声变幅杆的要求，将等截面圆柱形阶梯变幅杆的一端替换成圆锥形变幅杆构成一种复合圆锥阶梯形变幅杆。
By studying ultrasonic amplitude transformers to meet the requirements of an ultrasonic vibration cell cutting system, a new compound cone step type amplitude transformer is constructed.
梯形变截面钢板弹簧具有轧制的线形简单、对设备要求不高等优点。
Trapezoid tapered leaf springs have advantages of simple rolled profile and low requirement for facilities.
梯形变截面钢板弹簧具有轧制的线形简单、对设备要求不高等优点。
Trapezoid tapered leaf springs have advantages of simple rolled profile and low requirement for facilities.
应用推荐