查询词典 radiation

With the depletion of ozone layer in stratosphere, solar UV-B radiation on theearth surface is increasing. Plants use sunlight for photosynthesis, and it is inevitable that they are affected by enhanced UV-B in the sunlight. Effects of UV-B radiation on the morphological structure and physiological biochemistry in leafy thallus of Spirodela polyrhiza were investigated in the present study.

大气臭氧层的耗损导致到达地面的UV-B辐射的增加，植物需要接受太阳光进行光合作用，因而不可避免地受到阳光中增强的UV-B辐射的影响。

Methods Accumulative doses of X-ray radiation emitted from the surface of terminal screen and radiation protective screen were measured by highly sensitive LiF thermoluminescent dosimetry.

方法采用高灵敏Lif热释光剂量计对计算机显示器表面及附加防护屏后的X线辐射剂量进行累积剂量监测。

The thermoluminescent dosimeters are widely used for measuring the radiation dose. However, the luminescence centers of thermoluminescent dosimeter are disappeared by reading process, and then repetition of measurement is impossible. Radiophotoluminescent glass dosimeters can be repeatedly read and keep the luminescence centers for a long time. The aims of this study are to develop and characterize the radiophotoluminescent glass dosimeter and measure the clinical radiation dose using Dose Ace system.

热发光剂量计广泛应用於辐射剂量的测量，其缺点为在计读过程中，发光讯号会消失不见，无法重复测读，而玻璃剂量计发光讯号不会因计读过程消失，可重复测读；本研究目的为进行试制玻璃剂量计，分析所试制玻璃剂量计的各项特性，亦使用商业化Dose Ace系统量测临床辐射剂量。

The gold-plated cavity has less interference of non-sky downstream radiation, and the standard gold-plated reference plate is used in calculating the interference of heat radiation to the lens of infrared thermometric instrument.

采用镀金腔体可以减少非天空下行辐射的干扰。采用镀金标准参考板推算热辐射对红外测温仪镜头的干扰。

Based on a computing model of floor heating residences, indoor thermal environment and heat distribution under the effect of heat charge/discharge, operation control and solar radiation has been concluded. Concept and formula of equivalent heat supply has been put forward which indicate that actual heat supply will be equal to the sum of design heat supply and equivalent heat supply. Recommend coefficient has been given taken Dalian as an example. Computed according to the new method, design heat supply can be reduced to 37% in cloudy day and 43.3% in sunny day, energy saving effect is very obvious. In Tromb wall solar house, effect of concrete wall on indoor temperature swing and attenuation of temperature wave is very obvious. While the outdoor air-temperature swing exceeds 10℃, indoor air-temperature swing belows 3℃. In the experiment, maximal difference in temperature between inner surface and outer surface of the 300mm wall exceeded 10℃. Heat storage and collector efficiency varies adversely according to solar radiation. Factors such as thickness, material, absorptance of the wall and permeation of the glass cover all have big influence on heat storage and collector efficiency. There exsisted an optimal thickness of the wall, which can make the best of heat storage and collector efficiency. Most of the heat stored in conventional Trombe wall during the daytime has been lost to the outside at night without heat preservation. Heat preservation on the outside surface of the wall has effectively improved heat release performance of the wall at night, heat supply to the room has increased too.

通过建立的地板采暖系统动态热性能分析模型，得出了在蓄放热特性、运行方式和太阳辐射等因素耦合作用下的室内热环境及热量分配比例，提出了等效供热量的概念及计算公式，指出实际所需供热量应等于设计供热量加上等效供热量，并以大连为例，给出了等效供热量的修正系数，以新方法计算，阴天可减少设计供热量37％，晴天最大可以减少设计供热量43.3％，节能效果显著；集热蓄热墙式太阳房中，混凝土蓄热墙的室温均一化效果和对温度波的削减作用非常明显，当室外温度波动最大幅度超过10℃时，室温波幅不超过3℃，实验中300mm厚墙体内外表面温差超过10℃；墙体蓄热效率与集热效率随太阳辐射照度的变化呈相反的变化趋势；墙体厚度、材料、表面吸收率以及盖板透过率等因素对集热和蓄热效率均有较大的影响，存在一个最佳的墙体厚度值，使得墙体集热和蓄热综合性能最优；传统的蓄热墙夜间没有外保温，辐射散热损失很大，研究表明墙体外保温方式明显改善了蓄热墙夜间的散热性能，增加了向室内的供热量。

While giving unexpectable moisture to skin, it can fully purify and restore skin cells. It forms a natural plant barrier, which carefully protects skin from ultraviolet radiation, dust and other kinds of radiation, at the same time, relax and revive skin, and help to complete skin restoring process.

在源源为肌肤注入意想不到的水分的同时，更将其净化和修复细胞的特质发挥至淋漓，一层天然植物的屏障，小心呵护表皮肌肤免受紫外线、灰尘和各种辐射，同时舒缓肌肤，帮助完成肌肤自然修复过程。

To study the variation features of infrared radiation and acoustic emission of concrete during the fracturing and water seepage process, a concrete block is pressurized with embodied water to uniaxially compressive stress. The changes of its IR radiation and AE are measured using an infrared thermal imager and a AE instrument.

对内含水体的混凝土试样进行单轴压缩加载，利用红外热像仪并辅以声发射仪，观测加载过程中试样的红外辐射与声发射变化特征，研究混凝土破裂与渗水的红外异常前兆。

The effect of 9 volcanic eruptions with VEI ≥ 4 on solar radia tion and air temperature in Xinjiang is analyzed based on the data of air timperature from 16 meteorological stations and the data of solar radiation from 8 solar radiation stations in Xin jiang.

本文利用1961－1993年新疆16个气象站气温资料和8个日射站的辐射资料，分析了火山爆发指数VEI≥4级的9次强火山爆发对新疆太阳直接辐射和气温的影响。

After light radiation time of one hour,the IC50 of cytotoxicity of C60 liposomes is 154.9 μg/ml.During the concentration of C60 liposomes are 16.86 μg/ml and 33.72 μg/ml separately,the plaque reduction rate of direct virucidal activity to HSV-1F strain is positive correlation to the time of light radiation,the correlation coefficients rate 0.8510（P.005） and 0.9766 （P.005） respectively.

光照1 h，C60脂质体对Vero细胞的细胞毒为154.9 μg/ml.C60脂质体浓度为16.86 μg/ml及33.72 μg/ml时，对HSV-1F株直接杀灭的空斑减数率与光照时间成正相关，相关系数r分别为0.8510（P.005）和0.9766（P.005）；当C60脂质体浓度为16.86 μg/ml时，对HSV-1F株感染阻断的空斑减数率与光照时间正相关，相关系数r依次为0.84（P.005）及0.9923（P.005），说明C60的抗病毒作用具有时间效应，主要是光敏动力学机制起作用。

The natural radiation is the main source of all radiation exposure to the public.

在人类所受到的辐射照射中，天然辐射是主要的。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐