化石展示了人们所认知的“适应性辐射”,这也从生物学的角度解释了一定时期内急剧的生物多样性现象,致使个体物种的分化没有被世人所察觉.
The fossils show what is known as an adaptive radiation. This is biology-speak for a period of diversification so fast that the individual splits cannot be distinguished.
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。
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.
芝加哥消息——即使对于可疑脑梗死这样的适应症，医生也应该注意到检查过程中多排螺旋CT相关的辐射剂量问题。
CHICAGO - Even for indications as serious as suspected stroke, doctors should be aware of the radiation doses being delivered with the multiple ct exams typically delivered during the course of care.
这些人的特征是肤色非常黑、干瘦长、肢也长，都是针对散热需求与强烈紫外线辐射的卓越生物适应。
These individuals are distinguished by very darkly pigmented skin and long, thin bodies with long limbs, which are excellent biological adaptations for dissipating heat and intense UV radiation.
这些现象表明，虽然南极地区紫外线辐射很强，但南极蓝藻可以产生多种抗紫外辐射的活性物质来适应这种极端环境。
These changes suggest the possible prescence of active substances in the cells of Antarctic Cyanophyceae-B able to resist UV-B radiation.
发热电缆低温辐射供暖系统是为适应城市能源结构的变化而出现的一种新型供暖方式。
The exothermic cable low-temperature radiation heating system is a new type of heating mode that is suitable to the variation of the urban energys structure.
目的：观察X线低剂量辐射诱导胸腺细胞凋亡和细胞周期进程适应性反应的剂量率效应。
Objective: to observe the dose rate effect of adaptive response of thymocyte apoptosis and cell cycle progression induced by low dose X ray radiation.
目的：观察低剂量辐射离体照射能否诱导小鼠脾细胞的免疫适应性反应。
Objective:To investigate whether not low dose radiation (LDR) can induce immunological adaptive response (IAR) in mouse splenocytes in vitro.
目的：观察低剂量辐射诱导胸腺细胞DNA裂解适应性反应的剂量率效应。
Objective To observe the dose-rate effects of adaptive response of thymocyte DNA lysis induced by low dose radiation.
为提高目标的正确识别率，提出一种基于空间点目标红外辐射序列的自适应时延神经网络(atnn)识别方法。
The Adaptive Time-delay Neural Network (ATNN) based on exo-atmospheric space point target IR radiation sequences is proposed in order to improve the recognition rate.
目的：探讨低剂量辐射诱导小鼠脾脏细胞凋亡的适应性反应及其相关基因蛋白调控机制。
Objective: To explore the regulative mechanism of apoptosis-associated gene proteins on the adaptive response of splenocyte apoptosis in mice induced by low dose radiation .
既是优良的绿化树种，又是优美的观赏树种，抗病虫、抗污染、抗核辐射，环境适应性强是它的主要生长特点。
It is an excellent greening species as well as a beautiful ornamental. Its growth characters are pests and diseases resistance, antipollution, anti-nuclear radiation, high environmental adaptability.
结果冷适应后可以明显降低由于辐射而引起的心率加快，明显减轻由于单纯照射造成的NO降低，还可以减轻由于辐射而引起的ADR的升高。
Results The results showed that treatment with cold-adaptation could increase the level of NO by irradiation, and attenuat the production of the ADR level in blood.
因为翅膀图案在拟态和择偶中都有作用，它的分化还与物种形成和适应辐射有关。
As a result of its dual role in mimicry and mate selection, divergence in wing pattern is also associated with speciation and adaptive radiation3,5.
目的研究冷适应是否会引起辐射敏感性的变化。
Objective To observe the effects of radiosensitivity in cold-adaptation.
发热电缆低温辐射供暖系统是为适应城市能源结构的变化而出现的一种新型供暖方式。
The exothermic cable low-temperature radiation heating system is a new type of heating mode that is suitable to the variation of the urban energy structure.
二是改变目标和背景辐射温度对比度，提出了毫米波自适应隐身技术，该隐身技术能自动调整目标的毫米波辐射，使目标和背景融为一体。
It can be carried out with millimetre wave smoke and millimetre wave chaff… Another is one that change the rato of the temperature about to the target and backdrop radiation. Present…
为了适应未来星载微波辐射计新型扫描方式的要求，提出了结构简单、高稳定、高灵敏度的微波辐射计方案——计算机增益波动自动补偿微波辐射计。
For adapting to new scanning type of future satellite microwave radiometer, a new microwave radiometer model which has structure simplicity, high stability, high sensitivity was suggested...
为了适应未来星载微波辐射计新型扫描方式的要求，提出了结构简单、高稳定、高灵敏度的微波辐射计方案——计算机增益波动自动补偿微波辐射计。
For adapting to new scanning type of future satellite microwave radiometer, a new microwave radiometer model which has structure simplicity, high stability, high sensitivity was suggested...
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