水和脂肪的分离图像的形成方法，磁共振成像设备，参考峰的相位测定方法和参考峰的位置测定方法。
Water and fat separated image-forming method, magnetic resonance imaging apparatus, reference peak phase detection method thereof.
如何精确而又方便地测定晶体的相位延迟量一直受到人们的关注。
How to determine the phase retardation of crystal precisely and conveniently has continuously been paid attention to.
为了方便教学，对用共振干涉法和相位比较法测定超声声速的原理进行了剖析、比。
The principles used in measuring sound velocity by means of resonant interference and phase comparison are analyzed and compared, which are convenient for teaching.
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