辐射

These capsules are secured in USNRC-approved shielding source holders which limit the radiation field around them to less than 0.5 millirems per hour at one meter from the source holder except for the radiation beam port.

这些钢盒被固定在USNRC许可的防护源柄中，该防护源柄可把源柄周围的辐射场限制在距源柄1米处低于0.5毫雷姆每小时，除了辐射室仓口。

These capsules are secured in USNRC-approved shielding source holders which limit the radiation field around them to less than 0.5 millirems per hour at one meter from the source holder except for the radiation beam port.

这些钢盒被固定在经USNRC认可的防护源柄中，该防护源柄可把源柄周围的辐射场限制在距源柄1米处低于0.5毫雷姆每小时，辐射室仓口除外。

These capsules are secured in USNRC-approved shielding source holders which limit the radiation field around them to less than 0.5 millirems per hour at one meter from the source holder except for the radiation beam port.

这些钢盒被固定在USNRC许可的防护源柄中，该防护源柄可把源柄周围的辐射场限制在距源柄1米处低于0.5毫雷姆每小时，除了辐射室仓口。练习翻译？遇到难题？快来翻吧

Basing on the Monte-Carlo calculations of the detectors'responses to radiation and n/γdiscrimination ability, their radiation response properties are experimentally investigated on pulsedγrays, X rays from Z-pinch processes, n/X mixed radiation fields of the DPF neutron generator, electron beams of BEPC II Testing Beam Facility.

完成了探测器辐射响应、n/γ分辨能力的蒙特卡罗模拟计算，开展了探测器对脉冲γ射线、Z-pinch过程脉冲X射线、DPF装置脉冲中子/X射线混合场、BEPC II试验束装置脉冲电子束及国家串列加速器脉冲质子束的辐射响应实验研究。

From these analyses, we found that the spectral index is higher than,and gained that the evolution of AGNS could be from high-energy objects to the low-energy objects,such as BL Lac objects to the low-polarizble Quasar. In the paper, we also studied the possible correlations of the redshift and the spectral index and flux densities for different wavebands.

同时本论文还对活动星系核的各波段的流量密度进行了分析，得出：活动星系核的演化是由流量密度大的天体演化到流量密度小的天体；活动星系核的各波段辐射流量存在线性相关性，尤其是BL Lac的各波段辐射流量的线性相关特别突出。

The distributions of dimensionless temperature and net wall heat flux are calculated and compared to the results in references. By comparison, it is shown that the upwinding finite element methods developed have good accuracy in solution of radiative heat transfer in semitransparent media.

采用2个算例对提出的方法进行验证，与文献中得到的无量纲温度及净辐射热流分布较，结果表明提出的迎风有限元方法对于求解多维半透明介比质内的辐射传递有着很好的精度。

To avoid this, upwind finite element methods based on streamline upwinding and streamline upwinding petrov-galerkin schemes are developed to solve multidimensional radiative heat transfer in semitransparent media.

为消除解的非物理振荡，该文发展了基于流线迎风格式及彼得罗夫一迦辽金流线格式的有限元法来求解半透明介质的多维辐射传输问题，并对2种迎风格式求解辐射传递方程的性能进行了比较。

The imaging under in passive scene are provided , and t he f unctions of t he scene model , at mosp heric t ransmission model and p hysical property of materials acting on IR imaging are explained.

然后分析各种辐射对成像的影响，给出辐射计算公式，分别就无源和有源场景进行了分析，提出无源场景温度的求解方法，说明了场景模型，大气传输模型和材料的物理特性对红外成像的作用。

The fired heater comprises a radiant section enclosure with a number of U tubes in the radiant section. The U tubes are formed by connecting one or more tubular sections, and the U tubes are provided with internal generally longitudinal fins.

烧制的加热器包括一带有多个在辐射部中的U管的辐射部室。U管通过将一个或多个管状部相连而形成，而且U管设有内部的通常为纵向的翼片。

Below 60km, ionization is not due to the sun's ultraviolet and x radiation primarily, but to cosmic radiation.

在60公里以下，电离主要不是由于太阳紫外线和X辐射，而是由于宇宙辐射引起的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。