Deinococcus radiodurans, as a model organism in DNA damage and repair, is the most resistant bacterium to ionizing radiation.
耐辐射奇球菌作为DNA损伤和修复的典范生物，是对电离辐射最有抵抗力的细菌。
什么是电离辐射？
Irradiation exposes food to a low level of ionizing radiation to kill bacteria, molds, yeasts, parasites, and other microorganisms that can lead to food spoilage and illness if untreated.
辐射是将食品用较弱的电离放射法杀灭细菌，孢子，霉菌，寄生虫和如果不经处理就能导致食品变质和疾病的其他细菌。
In Part II we'll look at the consequences we can expect when ionizing radiation interacts with biological material.
在第ii部份我们将学习在游离辐射与生物介质相互作用时如何预期其结果。
Of concern in the current situation is ionizing radiation, which is produced by spontaneously decaying heavy isotopes, such as iodine 131 and cesium 137.
目前情况下值得忧虑的是电离辐射，它由重同位素——如碘131和铯137——自发衰变而生成。
Are people normally exposed to ionizing radiation?
人们是如何暴露在电离辐射下的？
People can get cancer from low doses of ionizing radiation, the kind released in a nuclear accident.
人们可能会因为核事故释放的小剂量电离辐射而致癌。
Radiofrequency waves are electromagnetic fields, and unlike ionizing radiation such as X-rays or gamma rays, cannot break chemical bonds nor cause ionization in the human body.
射频波就是电磁场，但是与X射线或伽玛射线辐射等电离辐射不同的是，射频波不会打破化学键，也不会给人体造成电离辐射伤害。
The scanning machines, called "backscatter scanners," deliver a dose of ionizing radiation equivalent to 1 percent or less of the radiation in a dental X-ray.
扫描机，所谓的“反射散射扫描仪”，发射出的电离辐射剂量相当于牙科辐射X射线的1%或更少。
Ionizing radiation is a known cause of certain types of leukaemia (a malignancy of blood cells).
电离辐射是导致某些类型白血病(一种血细胞恶性肿瘤)的一种已知原因。
It’s a non-ionizing type of electromagnetic radiation, as opposed to the ionizing radiation used in radiation therapy, for example.
不过，有别于化疗时的电离辐射的是，手机辐射是非电离性的。
Ionizing radiation exposure is measured as "absorbed dose" in gray (Gy).
电离辐射的暴露以戈瑞(Gy)“吸入的剂量”来衡量。
physical carcinogens, such as ultraviolet and ionizing radiation;
物理致癌物质，例如紫外线和电离辐射；
The lens of the eye is very sensitive to ionizing radiation and cataracts are known to result from effective doses of about 2 Sv.
眼球晶状体对电离辐射非常敏感，据知约2sv的有效剂量即可导致白内障。
At one extreme, the scientists estimated fly ash radiation in individuals' bones at around 18 millirems (thousandths of a rem, a unit for measuring doses of ionizing radiation) a year.
在极端情况下，科学家估计浮尘的放射性在个人的骨骼中的积累可以达到每年18毫雷姆(千分之一雷姆，衡量电离辐射剂量的单位)。
Cell phones produce "non-ionizing" radiation, which, unlike X - or gamma rays, doesn't damage DNA by stripping away electrons from molecules in cell tissue.
手机产生“非电离”辐射，它不像X或伽马射线那样从细胞组织中的分子里分理出电子，从而破坏dna。
Cell phones emit "non-ionizing radiation," similar to the kind produced by microwave ovens and cordless phones.
手机发出的是“非离子化辐射”，类似于微波炉和无绳电话发出的那种。
The ionizing radiation from the high altitude burst can travel for hundreds of miles before being absorbed. Significant ionization of the upper atmosphere (ionosphere) can occur.
由高空爆炸产生的致电离辐射在被吸收之前能够传播几百英里，产生明显的高层大气电离(电离层)。
Radon in our homes is the main source of exposure to ionizing radiation, and accounts for 50% of the public's exposure to naturally-occurring sources of radiation in many countries.
我们家中的氡是接触致电离辐射的主要来源，在许多国家中占大众接触自然发生的辐射源的50%。
With a careful theoretical analysis various physical parameters such as the gas density, temperature, and pressure, and the ultraviolet and ionizing radiation fluxes can be derived .
通过仔细的理论分析，可以推导出如气体密度、温度和压力等各种物理参量，以及紫外辐射和电离辐射的流量。
Because ultrasound does not use ionizing radiation, unlike radiography, CT scans, and nuclear medicine imaging techniques, it is generally considered safer.
超声由于不使用电离辐射，与摄片，CT扫描和核医学成像技术，它通常被认为更安全。
Results: the sensitivity to high and low dose ionizing radiation was distinct in different area of the cortex.
结果：淋巴结皮质的不同区域对高、低剂量电离辐射的敏感性均不同。
Comprehensive Epidemiologic data Resource - studies and data related to dosimetry standards and health effects of ionizing radiation.
与放射量测定标准和电离辐射对健康的影响有关的研究及数据。
Ionizing radiation, the powerful type from nuclear weapons, nuclear power plants and X-ray machines, is strong enough to knock electrons off atoms and damage DNA.
核武器、核电站和X光机产生的强烈的电离辐射足以把电子从原子中释放出来，损害dna。
Emphasis is given to the characteristics of the dose response and time response relationships of adaptive response induced by extremely low dose rate ionizing radiation.
强调了极低剂量率电离辐射诱导适应性反应的可能及其剂量效应和时间效应关系的特点。
On a molecular level these effects to the organism are caused mainly by the damage induced by the ionizing radiation to the DNA of the living cell.
从分子水平来看，电离辐射对生物体的损伤主要是由于电离辐射引起了生物细胞内DNA分子的损伤。
Cells of the hematopoietic system and gastrointestinal track are extremely sensitive to apoptosis induced by high-dose ionizing radiation.
血液系统和胃肠道细胞极易产生高剂量射线电离辐射所诱导的凋亡。
Radiography is the use of ionizing electromagnetic radiation such as X-rays to view objects.
放射学是利用电离电磁辐射，如X射线视图对象。
Radiography is the use of ionizing electromagnetic radiation such as X-rays to view objects.
放射学是利用电离电磁辐射，如X射线视图对象。
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