An urban heat island is created when dark colored man-made materials used in the construction of a city absorb the sun's rays and release that energy back out as heat.
深色的人造建筑材料吸收太阳辐射,并将获取的能量以热量的形式释放出来,城市“热岛效应”随即产生。
Its purpose is not to shield radioactive emissions but to prevent the release of radioactive dust and other materials, and to keep out rainwater, which could carry contaminants into the water table.
它的作用不是用来遮挡放射性排放而是阻止放射性烟尘和其它物质的释放,以及遮挡雨水以防止雨水携带污染物流入地下水。
When a current is applied across the sandwich, the electrons and holes team up at the junction of the two materials and release energy in the form of light.
电流流过夹层,电子和空穴在两种材料接口处共同发挥作用,释放光能。
These materials are known as "radioisotopes" -versions of an element that, because they have an abnormal number of neutrons, frequently decay and release radiation.
这些物质被称作“放射性同位素”—同一种元素的变种,他们具有异常的中子数量,频繁的衰变和放出辐射。
Finally, as part of this contents summary, we must identify the introductory and explanatory materials, which accompany the initial release of methods and practices.
最后,作为内容摘要的一部分,我们必须确定伴随方法和实践最初版本的介绍和说明材料。
There were fears that an explosion at reactor unit 2 May have damaged the containment vessel, which increases the risk of release of hazardous radioactive materials.
有人担心2号反应堆发生的爆炸可能已经损坏了保护罩,从而增加了核泄漏的风险。
In this article, the types, mechanisms, materials and applications of the controlled release of drug are discussed.
本文主要介绍药物控制释放的种类、机理、高分子材料及其应用。
The release and aerosolization of the fungal spore on the surface of building materials are the key factors to investigate the bioaerosol exposure and harmful effects on human health.
建筑材料表面真菌孢子的释放和气溶胶的形成,是研究室内空气微生物气溶胶暴露及其对人体危害的关键因素。
This paper presents a theoretical analysis about the propagation rule of the micro-crack in brittle materials under axial compression, based on the energy release rate criterion.
本文利用混合型裂纹扩展的能量释放率理论对脆性材料受轴向压缩时其内部微观裂纹的扩展规律进行了研究。
Ensure that the quality unit makes final decisions relating to release of raw materials and supplies (e. g., garments) you use in production.
确保是由质量部门做出旅行原料和你们生产用品(例如防护衣)相关的最终决策。
Such an increase can be of a meteorological origin and need not be due to an accidental release of radioactive materials from the nuclear power stations.
但环境辐射水平增加并不一定是由于核电站意外泄漏放射性物质,亦有可能与气象因素有关。
However, the application of controlled release fertilizer is limited by its high cost and environmental pollution brought from membrane materials of synthesized polymer with low degradation.
但是现有控制释放氮肥因大多成本过高并且控制释放膜使用的膜材料多为难降解的合成高分子材料而限制了其大规模应用。
It discusses how to select designs that can prevent or mitigate the release of flammable or toxic materials, which could lead to a fire, explosion, or environmental damage.
它讨论,在选择能防止或者减轻易燃或者有毒材料的释放,可能通向一火,爆炸或者环境损害的设计。
Nutrients release rate and release duration were used to assess the effect of coated materials and its structure on the release properties of controlled release fertilizers.
以养分释放速率和释放期为主要指标评价了膜材料及其构成对调节控释肥养分释放特性的影响。
The release of material non-toxic non-polluting materials, with fire and wear-resistant and anti-erosion function;
材质采用无毒无污染释放的材料,具有防火和耐磨损和防侵蚀的功能;
Radon from building materials such as granite, brick sand, cement and gypsum and the like, in particular, contain elements of natural stone and easy to release radon.
氡主要来自建筑材料,如花岗岩、砖砂、水泥及石膏之类,特别是含有放射性元素的天然石材,易释放出氡。
The controlled drug release systems are an important research field in biomedical materials applications. Its effectiveness largely depends on the good properties of drug carriers.
药物的控制释放体系是生物医用材料研究领域的重要课题,其支撑点是要有性能良好的高分子药物载体。
Heavy heat-absorbing materials, such as stone floor tiles or extra layers of gypsum wallboard, are incorporated into buildings to collect heat and slowly release it.
重吸热材料,如石材地板,或多层的石膏墙板,结合建筑收集热量然后再慢慢释放。
Meanwhile, language of art receives a new lease of life in the release and expression of creative force in nature of materials.
艺术语言也在材料自身的自然力和创造力的释放和表现中得到新生。
Membrane materials with special functional features or combination of different types of materials can also be used to regulate the drug release rate of the pellets.
还可利用衣膜材料不同的功能特性或不同类型材料的组合调节药物的释放速率。
Poly(p-dioxanone) has high degree of crystallinity which limited it to copolymerize with other monomers to be used as controlled drug release materials.
但聚二氧六环酮的结晶度较高,不适合直接用做药物控释材料,需要与其他单体进行共聚以改善其亲水性和结晶性等性质。
However, afterwards the values of the previous period or the history records (as of Release 4.5) of the materials posted in this case are inaccurate.
然而,执行更正后前期间和已过帐的历史物料的价值将不准确(4.5版本)。
According to the production period and production cycle is estimated that in 2009 or the raw materials industry will usher in a new round of a net release of strong production capacity.
根据生产周期和生产周期,预计在2009年或原材料工业将迎来一个强劲的生产能力,新一轮的净释放。
Impact work of grinding ball depends on the diameter and revolutions of mill, the release Angle, diameter and materials of balls.
磨球的冲击功与球磨机直径、转速、脱离角、磨球直径和材质有关。
Result the sorts, model and amounts of matrix materials had remarkable influence on the release mechanism of sulindac from the matrix tablets, while the influence of the selected fillers was marginal.
结果骨架材料的种类、型号及用量对舒林酸释放机制影响较大,填充剂对舒林酸释放有一定影响。
This paper compares the performance levels of selected GMS materials as antistat and mould release agents in homopolymer and random and impact copolymer PP injection moulding applications.
本文比较了几种甘油单硬脂酸(GMS)产品在均聚无规与耐冲击共聚PP的注塑应用中作为抗静电剂和脱模剂的效果。
This paper compares the performance levels of selected GMS materials as antistat and mould release agents in homopolymer and random and impact copolymer PP injection moulding applications.
本文比较了几种甘油单硬脂酸(GMS)产品在均聚无规与耐冲击共聚PP的注塑应用中作为抗静电剂和脱模剂的效果。
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