x low efficiency 低效率
VCT obtained isotropic high resolution while reducing patient doses through the improvement of X ray detection efficiency to truly realize the goal of balancing high quality images and low X ray dose.
VCT在实现各向同性高分辨率的同时努力提高X射线的有效利用率，降低病人剂量，真正实现了高图像质量和低剂量的和谐。
The zero-valence iron process is a competitive method for treating reactive brilliant orange X-GN wastewater because of its high efficiency and low price.
从以上结果可见，零价铁法处理活性艳橙X-GN染料废水成本低廉，处理效果好，具有很好的应用前景。
Antenna have high gain, low noise temperature characteristic under test in experimentation, and it can precision tracking at S-band, high efficiency receive at S/X-band.
经过外场测试，天线在S/X双频段具有高增益、低噪声温度的优良性能，天馈系统在S波段能进行精密跟踪及S/X双频高效率接收。
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