相对产量总和 RYT
等效电路和相量图 equivalent circuit and phasor diagram
相位裕量和带宽 phase margin and bandwidth
光学相干性和量子力学 Optical Coherence and Quantum Optics
相对论和量子力学 Relative Theory and Quantum Theory
和相量测量单元 phasor measurement unit ; PMU
系统和相量测量单元 phasor measurement unit ; PMU
固相含量和液相含量 Solids and Liquid Content
飞砂产生与否主要取决于熟料液相量和液相性质（主要是表面张力）。
The formation of fly sand is determined by the quantity of the liquid phase of clinker and the property of the liquid phase (the surface tension mainly).
基于GPS的同步相量测量单元（PMU）是一种新型的高精度测量装置，能够测量母线电压相量和支路电流相量。
Phasor measurement unit(PMU)based on GPS is a new and precise measuring device, which can be used to measure bus voltage phasor and branch current phasor.
2009年上半年，在线旅行社(OTA)的酒店和租车类别的访问量与2008年、2007年相比，也出现了轻微增长。
Online travel agencies (OTAs) also showed slight increases in hotel and car rental visitor volume in the first half of 2009 compared to 2008 and 2007.
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