查询词典 heat radiation

That is, the vertical radiation angle is too narrow for the illumination of SAT TV offset parabolas, and horizontal is too wide, as shown in the figures.

原因是它的垂直方向角非常狭窄，换句话说，对于偏馈卫星电视抛物面天线来说，垂直方向角太狭窄了，而水平方向角又太宽了，如图所示。

The radiation was simulated by a Discrete Ordinates method.

NO模型为热力型NO，炉膛尺寸为800mm×800mm×1400mm，燃料喷口为圆形，直径为10mm，位于中心。

Rectangular and unstructured hybrid grids, re-normalization group k-ε turbulence model and discrete ordinates radiation model were adopt for the steady-state numerical calculation of air velocity filed and temperature filed, and obtained the distribution of air flow velocity and temperature in the passenger compartment.

采用矩形与非结构混合网格、RNGκ-ε两方程湍流模型、DO辐射模型对车室内的空气速度场及温度场进行了稳态数值模拟计算，获得了车室内空气流速及温度的分布情况。

Before chemotherapy, before radiation, the knife is frequently the oncologist's first line of attack.

在进行化疗和放疗之前，开刀切除经常被作为肿瘤医师的最初治疗手段。

All you have to do is go to an oncologist and tell them that you think you have cancer, and they may find some reason to put you on chemotherapy or radiation therapy.

你说有做的事就是找癌症医生，告诉他们你有癌症，他们可能能找到某些理由给你做化疗和放疗。

Methods: Pedigree survey, chromosome analysis detection of radiation and oncogenic substances were adopted.

对报告的高发癌家系采用家系调查分析、染色体分析和生活环境的放射线检测和致癌物质的检测等方法进行调查。

It is treated with six fields (Anterior, Posterior, four obliques) positioned 60° apart around the circumference of the patient, each dual field is made up of two component beams, pointing ±15° with respect to the horizontal. The nominal energy of electron beam produced by Mevatron Ⅻ is 3MeV, and the patient is treated at a distance of 3 meters. Using Capintec dosemeter and PS-033 electron beam chamber for measurement, one moniter unit of radiation is equivalent to 0.0127cGy. Measurement of electron energy by Kodak X-omat-V verification film inside the Rando phantom at 100 cm SSD was 3.70MeV, electron energy measured at 3 meters was 3.51MeV. X-ray contamination was measured as 9.5% per six dual fields.

此种方法分别使用六个双照野，由病人的前、后、左前、右前、左后、右后各间隔60度共六个方向照射，每一双照野由水平向上和向下15度照射；荣民总医院选择3MeV电子射束来治疗病人，治疗距离为3公尺，利用擬人假体及柯达X-omat-V验证片实验得电子射束初始能量从3.7Mev变为3.51MeV，六个双照野之X光污染共达9.5%，使用Capintec剂量表及PS-033型电子射束用游离腔测量六个双照野，每一监测单位相当於0.00127 cGy。

The authors find coupling mechanism of momentum of nutations between solar and earth. It is caused by solar radiation, earth's rotation and revolution, angle between ecliptic and equator, irregularity of oceans and continents between northen hemisphere and southen hemisphere and layer structure of earth's core.

作者发现：太阳辐射，地球自转与公转，黄、赤交角的存在，陆地和海洋在地球表面南、北半球的不规则、不对称地理分布，及地球内部因〖ZZ〗形成的分层结构，构成了一套天然的能使地球产生自由章动的日、地间动量相耦合的物理机制。

Within the limitation of SBTART model, the paper is concerned with the preliminary study of the feasibility of determining total atmospheric ozone by scattered ultraviolet radiation from the clear zenith blue sky.

选用SBDART模式作为大气辐射传输计算模式，通过模拟计算和结果分析探讨无云的晴天、垂直对天顶观测的紫外前向散射反演大气臭氧总量的可行性。

This invention relates to a method and device for generating cold atomic beam. Said method includes heating hot atom source in vacuum chamber to form atomic saturated vapor pressure atmosphere, cooling hot atom by three-D MOT to below 200uk and trapped to form cold atomic cloud, by the quarter wave plate reflection mirror in MOT the laser radiation pressure being unbalanced to make cold atom emitting along said direction, four tape arranged straight line set with contrary current direction is set in atom beam emission direction, which makes the atom emitted to forward to obtain cold atom beam with low speed, large flux and small transverse speed, laser beam vertical with atom beam set in the direction of cold atom emitting for atom beam state preparation to realize state concordant emitted cold atom beam.

本发明涉及一种冷原子束产生方法和装置，该方法包括在抽真空的真空室内，加热热原子源，在真空室中形成相应的原子饱和蒸汽压气氛；采用三维MOT对热原子进行冷却，冷却到200μk以下，并被捕获形成冷原子云团；通过三维MOT中开小孔的四分之一波片反射镜，而使得在该方向上激光辐射压力不平衡，使冷原子沿此方向出射；在冷原子束出射方向上，还置有载有彼此电流方向相反的四根成锥形排列的直导线，从而原子出射时将在磁场的作用下，不会沿横向膨胀而向前射出；便得到了出射速度低的、通量较大的、横向速度非常小的连续冷原子束；同时在冷原子束的出射方向上，设置有与原子束垂直的激光束，用于原子束的态制备，实现态一致的出射冷原子束。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。