各种形状和尺寸圆型，平面，二，三，四片面缝补或热封过程的均为接缝焊接。
All shapes and sizes Manufactured as round, flat, two, three, and four sided Sewn or heat sealing process to weld all seams permanently.
本文应用弹性理论，对圆轴扭转时“刚性平面假设”进行了论证，为“刚性平面假设”提供理论依据和深化概念。
"Hypothes of rigid plane", as round shaft distorts, is expounded and proved by use of the elastic theory, thus providing the hypothesis with a theoretical basis and deepened concepts.
由一个正方介质柱和两个圆介质柱构造一个二维正方复式晶格的光子晶体。应用平面波展开的方法研究了光波在其中的传播规律。
The photonic band structures of two-dimensional square compound lattices made of two kinds of dielectric cylinders are calculated by the plane-wave method.
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