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- The effects of insertion loss, split ratio, polarization crosstalk and back reflection of Y-type integrated optic circuits are analyzed. 分析了Y型集成光路器件的插入损耗、分光比、偏振串音和背向反射等主要技术指标对陀螺性能的影响。
- A new type of geophone is presented,based on the narrow band transmission and free of back reflection features of long period fiber grating. 基于长周期光纤光栅能透射特定波长的性质,以及其无后向反射的优点,提出一种新型的长周期光纤光栅地震检波器系统。
- In the testing plate, any discontinuity indication causing a total loss of back reflection which cannot to contained within a circle the diameter of which is is unacceptable. 板材探伤时，任何引起底波消失的不连续指示不能被的圆所包围应判废。
- Rose bushes shoot again after being cut back. 玫瑰丛修剪後还能再长出新枝。
- Development of latent fingerprint on adhensive side of tape by UV reflection photography 短波紫外反射照相显现胶带粘面潜在指印
- He trudge three hour in the snow to get back home. 他在雪中跋涉三个钟点才回到家。
- The crowd fell back to let the players through. 人群后退让运动员们通过。
- Do exercise every day and you'll be back in condition. 每天锻炼锻炼，你很快会恢复健康的。
- The ship beat back against a monsoon. 船逆着季风艰难地行驶。
- I flap the flies away but soon they fly back. 我把苍蝇赶走，但一会儿又飞回来了。
- I never lend books; you never get them back. 我的书决不外借，因为总是有去无回。
- She leaned her head back and whispered the news. 她向后仰着头，小声说出了这个消息。
- Keywords Nondegenerate four-wave mixing;Phase conjugation;Back reflection; 关键词非简并四波混频;相位共轭;背向反射;
- The talks have been put back to Friday morning. 谈判推迟到星期五早上进行。
- He hated to tuck his tail and back down now. 他讨厌此时夹着尾巴退回来。
- After a long coma the sick man slowly came back. 昏睡了好久以后，那个病人慢慢地恢复了活力。
- Back in Nigeria we used to play a lot of tennis. 我们以前在尼日利亚经常打网球。
- The crowd fell back to let the ambulance through. 人群往后退，让救护车通过。
- The teacher get a raspberry as she turn her back. 该教师转过身去时有人用舌与唇发出嘲笑她的声音。
- He is a full back of our football team. 他是我们足球队中的后卫。
