To meet the requirements of miniaturization, high gain and wideband of UHF antenna for aircraft SAR, the gain loss produced by narrowing back cavity of short back radiation antenna is analyzed.
针对超高频机载合成孔径雷达天线小型化、高增益和宽频带的问题，分析了短背射天线缩小背腔的增益损失。
When conditions are hot, the ostrich erects them on its back, thus increasing the thickness of the barrier between solar radiation and the skin.
当天气炎热时，鸵鸟会把它们背在背上，这样就增加了太阳辐射与皮肤之间的屏障厚度。
THE reconstruction of Japan's Tohoku region, hit by earthquake, tsunami and fears of radiation, risks being held back by red tape and high business costs.
日本东北部的灾后(地震，海啸，辐射)重建并非易事，恼人的繁文缛节和高昂的企业成本是其严重绊脚石。
Lighter colors, however, reflect back a sizable fraction of the radiation, helping to keep a building - and, more broadly, the city and Earth - cooler.
然而，较浅的颜色会折射走数量可观的辐射，使得建筑——更广义地说，就是城市和地球——凉爽一些。
To determine if the early magnetic field was enough to hold back the rain of radiation, the team needed to know what the sun was doing.
为了确定这种早期磁场是否足够抵御辐射雨(rain of radiation)，这个研究团队必须知晓那个时期太阳的情况。
The group has just issued a report, published by the Novim research organization, analyzing the use of aerosol particles to reflect shortwave solar radiation back into space.
该小组刚刚由诺文研究组织发布一项报告，报告分析了悬浮粒子的作用，即能把短波的太阳辐射反射回大气中去。
A surgeon can remove as much of the brain tumor as is safe and prescribe chemo - and radiation therapy, but the cancer will grow back.
一位外科医生可以在保证安全的情况下删除尽可能多的脑肿瘤，并制订化疗和放射治疗，但癌症还会继续增长。
Electrons that were deprived of their energy in favour of electromagnetic radiation go back to the resonators and get inhibited there.
而被剥夺了电磁辐射能量的电子将回到谐振器中并被抑制在那里。
People have looked at Earth's radiation reflected back to us from the moon, and you can actually observe the oxygen and methane and ozone in our atmosphere.
人们已经看到了从月球反射给我们的地球辐射，可以实际上观察到大气层中的氧、甲烷和臭氧。
Ice reflects solar radiation back into space and therefore helps to prevent the Earth heating up.
冰把太阳辐射反射回太空，因此有助于防止地球升温。
Most of the energy is lost through heat loss through the reactor's wall or through the re-radiation of sunlight back through the device's aperture.
而大多的能量都通过反应器壁的热耗散，或者通过装置开孔的太阳光再发散损失掉了。
Physical objects, when struck by light (the visible kind, see electromagnetic radiation), will reflect back certain wavelengths of light to your eyes.
一个物体，受到光线照射(可以看得到的物体，见电磁辐射)，将会把某些波长的光反射到你的眼睛里。
Back in 2000, Randy Jirtle, a professor of radiation oncology at Duke University, and his postdoctoral student Robert Waterland designed a groundbreaking genetic experiment that was simplicity itself.
2000年时，公爵大学的一位肿瘤放射科的一位教授Randy Jirtle和他的博士后学生罗伯特·沃特兰设计了一项具有突破性的遗传实验。
Mantz: Concerns about radiation and radiological objects falling back to Earth.
曼茨：人们对辐射和落回地球的放射物感到担心。
Sensors will record the peakradiation seen during the flight, as well as radiation levels throughout theflight, which can be mapped back to geographic hot spots.
传感器将记录下飞行过程中出现的峰值辐射，以及在整个飞行中的辐射水平，这可以被映射回地理热点。
When sunlight strikes the Earth's surface, some of it is re-radiated back towards space as infrared radiation (heat).
当阳光照射到地球表面，一部分阳光作为红外辐射(热)被重新辐射回太空。
Work continues to try to bring automated cooling systems back on line that would help prevent an even potentially worse spread of radiation from the severely damaged complex.
工作人员还在继续试图恢复自动冷却系统，以帮助防止这个遭到严重损坏的核电站释放辐射的情况进一步恶化。
Thermal distortion of mirrors caused by high power CW laser radiation and pressure distortion by water-cooled back pressure have been measured using a Twyman-Green interferometer.
采用泰曼-格林干涉仪，测量了反射镜在高功率激光连续辐照下发生的热形变和镜背侧冷却水压造成的压力形变。
Parents say they are particularly concerned about bringing their children back because the health effects of radiation on the young are so unclear.
家长们说他们特别担心将孩子带回来，因为核辐射对于孩子们的健康影响还不清楚。
While in the form of radiation, the energy may travel a tremendous distance before being absorbed or changed back into heat.
当能量以辐射能形式存在时，可以在经过很长距离后，才被吸收或转化为热。
Navigating the Fluoroscope's C-Arm Back into Position: An Accurate and Practicable Solution to Cut Radiation and Optimize Intraoperative Workflow.
导航下投射器C形臂复位：一个准确的、适用的解决投射和优化术中工作的方法。
If radiation is applied around the head or neck, hair loss will occur as Alopecia, and may not grow back.
如果辐射周围的头部或颈部的应用，如脱发脱发会发生，并可能无法重新生长。
Method of semiconductor wafer back processing, method of substrate back processing, and radiation-curable pressure-sensitive adhesive sheet.
半导体晶圆背面加工方法，衬底背面加工方法，和辐射固化型压敏粘着片。
Mantz: Concerns about radiation and 15)radiological objects falling back to Earth.
曼茨：人们对辐射和落回地球的放射物感到担心。
But sometimes the cancers spread to other parts of the body or partially resist radiation and grow back later.
但有时肿瘤会扩散到身体其他部位，以及局部对放疗不敏感而复发。
A certain amount of nail head or fin within an acceptable range of tube's back side can improve the area of access to radiation.
在炉管背火侧的一定范围内增加适量的钉头或翅片，可以提高背火侧的受辐射面积。
The ACR has a long history of providing accreditation for diagnostic imaging and radiation oncology services dating back to 1963.
ACR具有悠久的历史，提供诊断成像和放射肿瘤学服务，可以追溯到到1963年的评审。
The ACR has a long history of providing accreditation for diagnostic imaging and radiation oncology services dating back to 1963.
ACR具有悠久的历史，提供诊断成像和放射肿瘤学服务，可以追溯到到1963年的评审。
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