loss n. 1.丧失;丢失,遗失。 2.减损,损失,亏损(额);损耗;减少,下降。 3.失败;输掉。 4.错过;浪费。 5.损毁;【军事】伤亡;〔pl.〕 伤亡及被俘人数。 loss of sight 失明。 copper loss【电学】铜耗。 core [iron] loss【电学】铁耗。 a dead loss净亏,纯损。 an idling loss空转损耗。 a total loss总损失。 His death is a great loss to the country. 他的死是国家的大损失。 profit and loss盈亏。 suffer heavy losses 遭受重大损失。 loss of pressure 压力下降。 loss in weight 重量[体重]减少。 loss of weight 失重。 the loss of a war 战败。 loss of opportunity 错过机会。 at a loss 1. 无办法,为难 (I am at a loss what to do. 我就是不知道怎样办才好)。 2. (猎犬)失去猎物嗅迹。 3. 亏本地 (sell sth. at a loss赔本卖出某物)。 cut a [the] loss 赶紧脱手以免多受损失。 for a loss 处于苦恼中 (throw them for a loss 使他们苦恼)。 make a loss 亏损。 without (any) loss of time 即刻,马上。
In figure 3 the led source is too dispersive and there is a large light loss at the bend providing only 25 % efficiency in the lightpipe 在插图3中led光源太分散而且有很大的光损失在弯曲部份,这亦使得光管仅能提供25 %的效率。
It can remarkable enhance the external quantum efficiency by changing the structure of faceplate and decrease the light loss , because if can change the direction of the ray , and avoids the light - wave effect 这正是本文研究的内容。这种方法通过改变器件的结构,降低光在器件内部全反射的损失,从而提高器件的外量子效率。
The optical switch with double - heterostructure gaas / gaalas has low switching - voltage and light loss . and the boa - type optical switch utilizes maximum modal dispersion ( a p ) , does not require a specific fabrication length or length range to operate , has simple structure , and can exhibit very high extinction - ration from its two output ports ; so it is suitable for a 2 x 2 unit of optical switch array 而boa型结构(或称为零间隙定向耦合型)光开关利用了最大的模色散( ) ,不需要严格控制特殊的制造长度或制造范围,结构简单,从其两个输出端可以得到很高的消光比,是一种很好的2 2波导型光开关单元,同时也是光开关阵列的一种较好的选择。