The results of calculation and experiment indicate that the coupler is excellent in the chacteristics . on the other hand , the coupling degree can be enhanced by the method of enlarging the slot 提出了加感性匹配圆棒的大窗口h t耦合器的设计，以满足慢波线中部分对耦合要求较强的需要。
Remark : 1 . to supply other types and shapes of product if agreed . 2 . rod material specification regarding to the diametre of round rod . square rod and multi - shaped rod regarding to inside diametre 注： 1 .经协商可供应其它状态及形状的产品。 2 .棒材规格指圆棒直径、如方棒及多角形棒指内切圆直径。
We first expand the nonlinear temperature - dependent convective and radiative heat transfer coefficient about the ambient temperature by taylor - series method , and then the crystal temperature and the pull rate as well as the bulk melt temperature are determined by the perturbation techniques in a simply analytical manner 分析之过程为首先将随温度变化之对流系数及辐射系数做泰勒级数展闭，再以摄动理论之技巧，同时求解晶圆棒之温度、拉伸速度及溶解液之温度。
