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遮蔽性能
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  screening performance
     Field Evaluation of IR Smoke and the Screening Performance to IR Laser
     红外烟幕对不同波长激光遮蔽性能外场评估的数学模型
短句来源
     Field study of IR smoke′s screening performance using imaging IR technique
     用红外成像技术外场研究红外烟幕的遮蔽性能
短句来源
     Because the measurement of anti-infrared smoke screening performance that is an important factor of smoke agent is deeply affected by weather and environment, measurement is always a difficult problem in field. Anti-infrared smoke screening model is developed based on theory of radiation transmit process and atmospheric diffusion. Some of results are confirmed by experiment, the experiment results are according with calculated results.
     针对外场抗红外烟幕性能测试受气象条件和环境因素的影响较大,对准确评估抗红外烟幕遮蔽性能存在较大困难的情况,本文依据辐射传输理论和大气扩散理论,通过对外场烟幕性能测试过程的环境影响因素分析,建立了外场抗红外烟幕遮蔽性能的计算模型,通过试验对其中的一些结论进行了实验验证,结果表明计算结果能够与实验数据较好吻合。
短句来源
  “遮蔽性能”译为未确定词的双语例句
     STUDY ON PROPERTY OF INFRARED OBSCUR OF ARTIFICIAL FOG
     人造雾的红外遮蔽性能试验研究
短句来源
     Calculation and analyzing of the extinction characteristics of the water fog
     水雾遮蔽性能的计算和分析
短句来源
     Study on Performance of Micro-Physical Characteristic and Electromagnic Obscure of Artificial Fog
     人造雾的微物理特征与光电遮蔽性能研究
短句来源
     Based on these, to increase the mass concentration of smoke cloud, and then, the obscuring performance in infrared band of red phosphorus smoke projectile is improved efficiently through reloading the charge structure.
     依此,通过调整装药结构,提高烟幕云团的质量浓度,有效改善了赤磷烟幕弹在红外波段的遮蔽性能
短句来源
     The results show that the physical characteristic of fog is related to the conditions of environment, and has a influence on the photoelectric performance for jamming directly.
     结果表明,人造雾的微物理特征与外界条件密切相关,并直接影响雾的光电遮蔽性能
短句来源
更多       
  相似匹配句对
     Calculation and analyzing of the extinction characteristics of the water fog
     水雾遮蔽性能的计算和分析
短句来源
     Disturbing effect evaluation for smoke bombs
     烟幕弹遮蔽性能测量与评价
短句来源
     Plant Performance
     设备性能
短句来源
     How We Test
     性能测试
短句来源
     Conceal and Reveal
     遮蔽与解蔽
短句来源
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  screening performance
Effect of soft-copy display supported by CAD on mammography screening performance
      
A number of other studies are assessing screening performance against predetermined criteria but without any formal control group.
      
In such cases, a simpler approach based on group fusion would appear to provide superior screening performance, especially when structurally heterogeneous datasets are to be processed.
      
Tuned functions optimized with a sufficient amount of data exhibited either improved or undiminished screening performance relative to the original function across all eight complexes.
      
Although there is no biological reason to predict poor screening performance in the younger age groups, the sensitivity of screening mammography is lower in younger women.
      
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The test investigation of covering property, regain, covering heat property and body allergy for ultraviolet ray risistance polyester fabric shows that this fabric has remarkable effect on ultraviolet ray resistance and other properties are excellent.

通过对防紫外线涤纶织物的遮蔽性能、回潮率、遮热性、人体过敏性的试验研究,表明该织物具有明显的防紫外线效果和其它性能优良。

According to the measuring principle of imaging IR technique, the method which is taking screened objects as targets to study IR smokes′ screening performances to imaging IR systems is proposed. While field testing condition analyzed, the relative mathematical models are built, and it is also discussed how to evaluate IR smokes′ screening performances to imaging IR systems. \;

根据红外成像技术测量原理,提出了直接把遮蔽目标作为靶标研究红外烟幕对红外成像系统遮蔽性能的方法,分析了外场试验的条件,建立了相关的数学模型,并对如何评估烟幕的遮蔽效果进行讨论

Nano-ZnO with different diameter was prepared by controlling the conditions of the reactions. The middle infrared, ultraviolet-visible light absorption behaviors of nano-ZnO were studied and compared with commercial ZnO. The results indicated that nano-ZnO and commercial ZnO had obvious absorption in middle infrared band, and the nano-ZnO had high transparence property in the band of visible light, and nano-ZnO had wide absorbing frequency as well as good absorbing effect in ultraviolet band. Further study showed...

Nano-ZnO with different diameter was prepared by controlling the conditions of the reactions. The middle infrared, ultraviolet-visible light absorption behaviors of nano-ZnO were studied and compared with commercial ZnO. The results indicated that nano-ZnO and commercial ZnO had obvious absorption in middle infrared band, and the nano-ZnO had high transparence property in the band of visible light, and nano-ZnO had wide absorbing frequency as well as good absorbing effect in ultraviolet band. Further study showed that the ultraviolet light absorption behaviour of nano-ZnO varied with the diameter. The ultraviolet light shielded property was found when the particle sizes were 20~50nm. Blue shift of absorbing peak was observed as the diameter of nano-ZnO decreased.

 用均匀沉淀法制备了纳米氧化锌,通过反应条件和工艺参数的控制,得到了几种不同粒径分布范围的纳米级氧化锌粉体,并着重研究了这些不同粒径分布的粉体在中红外、紫外 可见光波段的吸收性能,并与普通氧化锌粉进行了对比,结果表明:纳米氧化锌在中红外频段与普通氧化锌的吸收能力相当;在可见光区,纳米氧化锌具有普通氧化锌不具备的高度透光性;而在紫外光区,纳米氧化锌具有很宽的吸收频段和优异的吸收性能,且随粒径的不同而出现变化,粒径分布在20~50nm之间,平均粒径为31nm时具有最佳紫外遮蔽性能;同时随粒径的减小,吸收峰发生蓝移。

 
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