Successive positions of the wave front are then given by the envelopes of the secondary waves.
因此波前的相继位置即为次波的包络面。
Objective TO investigate the clinical and electrocardiographic character of idiopathic and secondary abnormal J wave.
目的探讨特发性与继发性异常J波的临床及心电图特点。
Results the calculation result shows that spherical surface of the conductor buried in sandy soil presents not only primary and secondary scattered waves but also multiple wave and creeping.
结果表明埋藏在沙土中的导体球面不仅仅存在一次和二次散射波,而且还存在多次波和爬行波。
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