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Not just "flower" but "California poppy," and later, after exposure has stimulated an interest in plants, we can introduce the botanical names and further classification—such as kinds of leaf margins or flower corollas. Exposure to plants and animals initiates many important discussions which a wide vocabulary can enrich and make more satisfying.

并不只是&花&，而是&加利福尼亚罂粟&，后来，随着接触的增多，也激发了孩子们对植物的兴趣，我们可以引入植物学的名称和进一步的分类－例如叶缘的种类，或是花冠的种类，与动植物接触的多了，就会激发许多重要的讨论，这样的讨论所需要的更多的词汇可以丰富并使孩子们感到充实。

TGF-β1 took on extensive positive in alveolus epithlia in the control group. The positive cytes of the groups under hyperxia-exposure for 3, 7, 14 day distributed in alveolar epithelium, pulmonary interstitial, bronchoepithlia and macrophage, which were notably enhanced along with the time of hyperxia-exposure.

IFN-γmRNA在高氧3天（0.62+0.49）、7天（0.44+0.53）、14天（0.39+0.27 ）均高于空气组(0.20+0.14)，高氧3天达到高峰水平（P.05），高氧7天后开始下降（P＞0.05），高氧14天下降更为明显（P＞0.05）；TGF-β1的阳性细胞在空气组广泛分布于肺泡上皮，高氧组各期广泛分布于肺泡上皮、肺内间质、支气管上皮、血管内皮和巨噬细胞。

Compared with the control, the lungs of 3-day-hyperxia-exposure group developed into edema, hemorrhage and inflammatory infiltration and this condition aggravated at the 7th day. The pulmonary septum was significantly widened at the 14th day, the interstitial fibrocytes as well as alveolar epithelial cells proliferated obviously, and the tendency of lung fibrosis was also presented. The results mentioned above showed that the modle of hyperoxia lung injury was successfully established, and the acute inflamationm was its early symptom while the fibrosis was its late manifistation. There was no positive cytes of IFN-γ in the lung of nomal rats, The positive cytes of the groups under hyperxia-exposure for 3, 7, 14 day, which climbed to the climax at the 7th day and began to decline from the 14th day, were found in alveolus epithlia,pulmonary interstitial, bronchoepithlia and macrophage.

高氧14天（5.46±0.30）虽有所下降，但同空气组比，差异仍然具有显著性（P.05）；BALF中蛋白含量高氧3天（0.45±0.10）、7天（0.66±0.08）、14天（0.79±0.14）显著高于空气组（0.18±0.08，P值均。05）；肺通透系数高氧3天（6.61±2.05）、7天（10.88±1.54）、14天（12.75±2.20）均明显高于空气组（2.99±1.27，P值均。05）；同时病理组织学改变也表明与空气组比较，高氧3天时肺组织水肿、出血、炎性细胞浸润，7天时进一步加重，14天时肺间隔明显增宽，间质纤维细胞和肺泡上皮细胞明显增生，出现肺纤维化倾向；以上结果均表明我们成功地建立了高氧肺损伤动物模型，且急性炎症反应是其早期表现，纤维化改变是其晚期表现。

Below monolayer exposure, BrCH2CH2Br will decompose to gaseous C2H4 . Between 0.5-6L exposures, C2H4 desorbs at ~210K and among 2L exposure, C2H4 desorbs at 130K.

单分子层以下的BrCH2CH2Br曝露量，BrCH2CH2Br会在表面上分解形成C2H4脱附，曝露量0.5-6L时，C2H4有~210K的脱附峰，曝露量在2L以上时，C2H4有130K的脱附峰。

There was a great degree of variability in the exposure doses recorded by the peripheral dosimeters. Even dosimeters that were placed in the same plane diverged widely in their measured exposure.

由外周的放射剂量测量仪记录的暴露量存在很大程度的变化，甚至在装在同一个平面的放射剂量测量仪的偏差范围都很大。

EROD and ECOD are both phase I enzymes. There were complicated relations of time-effect and dose-effect between EROD activity and exposure of BaP, TBT or their mixture. Antagonistic interactions occurred after 25 days exposure to the mixure of BaP and TBT. It is fuzzy to merely use EROD activity as biomarker to assess PAHs or TBT pollution.

相解毒酶EROD活性与BaP、TBT及其混合物污染之间存在较为复杂的时间-效应与剂量-效应关系，而且在暴露25 d后，联合作用表现为拮抗作用，仅仅以EROD酶活性指标衡量环境中BaP、TBT或者二者的联合污染水平会出现失真现象。

With the development of electrical technology, the possible health hazard of exposure to ELF fields has become an issue of considerable public concern, particularly, the association between exposure to ELF fields and the risk of cancers.

随着电力事业的发展和家用电器的日益普及，极低频电磁场的健康危害已经引起公众的广泛关注，尤其是极低频电磁场暴露与肿瘤的危险度关系。

The objective of the risk characterization step is to integrate all of the information from the first three steps and provide both a qualitative assessment of the potential human health impact from exposure to the parasitic hazard and a quantitative estimate (e.g., 1:10, 1:10,000, 3:100) of the probability of certain human health outcomes actually occurring due to that exposure.

这一目标的风险特性的步骤是把所有的资料，前三个步骤，并提供一种既定性评估的人类健康的潜在影响，接触到寄生虫危害和定量估算（例如， 1：10 ， 1：1万， 3：100 ）的概率某些人类健康的结果实际发生的因接触。

Based on the four steps of risk assessment that is hazard identification,hazard characterization,exposure assessment and risk characterization,the risk assessment of bisphenol A is expound in this paper.The results show the potential human exposure to bisphenol A is negligibl...

根据风险评估理论的四个步骤，即危害鉴定、危害特征描述、暴露评估和风险特征描述，对双酚A进行风险评估，结果表明人体暴露于双酚A的量是微不足道的，没有对人体健康构成已知的风险。

Pearl ornaments should avoid exposure to acid-alkali substances and high temperature. they should also avoid direct exposure to perfume, hair crem and oil and salt, etc.when you wash your face and take a bath, you should take them off.

珍珠首饰应避免与酸碱性物质及高温接触，也应避免与香水、发乳及油盐等直接接触，洗脸、洗澡时应取下，珍珠沾有汗水和污物时，用中性洗涤液稍加浸洗，用水冲净。

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。