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ultrasound 英/ ??ltr?sa?nd / 美/ ??ltr?sa?nd / 1 ?超声波 超声波(Ultrasounds)法是指在较高的声强作用下，特别是低中频(低于1 HMz)范围内，超声波会在水相产生大量的寿命约为0.1μs空化穴(Neppiras,1980)，其...
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Nerve blocks, ultrasounds, and multiple sclerosis. - 2
For the Kindle 2, Amazon improved the software and upgraded the screen to grayscale so the photos would no longer look like fetal ultrasounds. 至于Kindle 2, Amazon升级了软件，屏幕也换成了灰度屏，这样一来，图片看上去不再形如B超图。 - 3
And abortion providers in the state have to perform ultrasounds on all patients, giving them the chance to see the image before the procedure. 并且该州提供堕胎服务者必须给所有病人做超声波，使其有机会看到手术前胎儿的样子。
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