能量的最大有效输入是在波腹.The most efficient input of energy is actually at an antinode.因此, 维纳能够推断出:变黑的区域是同E场的波腹相联系的.Accordingly, Wiener could conclude that the blackened regions were associated with antinodes of the E - field.在弦振动“...
She has recently begun to slouch over her typewriter.最近，她坐在打字机前就开始变得无精打采的。The Bundesbank's seemingly impregnable position has begun to weaken.德意志联邦银行看似不可撼动的地位开始削弱了。They have begun dialogues to promote better underst...
结论: 胆囊、二指肠瘘的超声表现具有一定的特征,有助于临床诊断.Conclusion: Characteristic ultrasonographic presentations are helpful for the diagnosis of cholecystoduodenal fistula.目的: 探讨胆囊、二指肠瘘超声图表现的病理基础.Purpose : To explore the pathological basis of...