The spectral region in the red or near infrared will be emphasized, because this is a region of low loss for optical fibers and therefore of interest for optical communication systems . 着重研究光谱区域是红及近红外波段，因为这是光学纤维低损耗的区域，也就是对光通信系统有意义的区域。
Model 3102 mechanical pressure switch with low leakage rate 低损耗率的机械压力开关
Low dissipation factor , high ripple current 低损耗角正切，高纹波电流。
Mechanical pressure switch with low leakage rate 低损耗率的机械压力开关
With high performance , low loss , and energy saving merits 2高性能，低损耗，具有节能低耗优点。
Energy - saving and low loss , the loss is not more than value of new s9 节能，低损耗，不高于新s9损耗值
A low loss planar waveguide by using organic - inorganic sol - gel 低损耗有机无机混合溶胶凝胶波导的实验研究
