1) power contrast degree
功率对比度
1.
Using "cat′s eye" effect theory to improve the laser eavesdropping device was proposed and the relationship between power contrast degree and defocus distance were analyzed.
提出了运用"猫眼"效应原理对激光窃听技术进行改进的方案,分析了功率对比度与离焦量的关系。
2) specific power
比功率(功率密度)
3) specific power density
比功率密度
4) relative contract
百分对比度;相对对比率
5) high power density ratio
高功率密度比
1.
Structure design of high power density ratio of airborne fire control radar transmitter is described in this paper.
论述了高功率密度比机载火控雷达发射机的结构设计 ,提出了一简洁的结构形式 ,使其功率密度比达到近30 w/ kg,而且便于生产制
6) reflectivity contrast
反射率对比度
1.
The properties of blue green laser induced crystallization for as deposited Ag 11 In 12 Sb 51 Te 26 phase change thin films irradiation are studied by measuring the reflectivity contrast at 500, 100 and 60 ns pulse duration.
用反射率对比度来衡量晶化程度,分别探讨了脉宽为500ns,100ns,60ns的蓝绿激光(514nm)作用下沉积态Ag11In12Sb51Te26相变薄膜的晶化性能,表明Ag11In12Sb51Te26相变薄膜在蓝绿激光下可具有较高的晶化速度。
2.
The results indicated that larger reflectivity contrast can be achieved by an appropriate doping of oxygen,thus the recording properties of the Ge Sb Te thin film material can be improved by oxygen doping.
研究了单层 Ge- Sb- Te- O射频溅射薄膜在 40 0 nm～ 80 0 nm区域的光学常数 ( N,K)和反射、透射光谱 ,发现适当的氧掺杂能增加退火前后反射率对比度 ,因此 ,可以通过氧掺杂改良 Ge- Sb- Te相变材料的光存储性
3.
The optical storage characteristics of GeSb 2Te 4 thin film indicated that larger reflectivity contrast can be obtained at lower writing power Argon laser (514.
５ｎｍ波长用较低功率的激光辐照样品时薄膜在写入前后的反射率变化较大，擦除前后的反射率对比度较低，可通过膜层设计来提
补充资料：X线对比度
X线对比度
影像学术语。均匀强度的X线穿过受检物体后产生的强度差异。X线对比度也称射线对比度。它
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参考词条