不迁移的

Meanwhile, the concentration of Pb,Zn and other heavy metals is rather high in the oxidation zone and decreasesdownward to levels that are unbelievably low for Pb-Zn mine tailings. Theseobservations suggest that heavy metals should be re-immobilized by secondaryminerals, rather than primary minerals, in the oxidation zone, and could be leachedout from suboxic environment due to low rate oxidative dissolution which preventsthe precipitation of secondary minerals in significant amount. Thus, cover scenarioswhich establish a suboxic environment beneath the cover layer might not always beeffective in preventing heavy metal release from mine tailings.Sequential extraction studies indicate that, in addition to heavy metal leaching,oxidation of the mine tailings increased the mobility of residual Zn, and Cu, while Pb remains immobile due to the formation of anglesite (PbSO4). Using the seven-step extraction technique developed by Dold (J. Geochem. Explor., 2003, 80: 55-68), galena dissolves in significant amount at step 2 most probably due to the strong complexing of Pb2+ by acetate, while other metal sulfides dissolve at step 6, which suggest that this extraction technique could not be used to evaluate the mobility of lead in natural environment

重金属含量均低于新鲜尾矿，但以硬化层中的含量最高(Pb、Zn含量分别为0.47%和0.93%)，往下大幅度降低，表明尾矿风化过程中形成的次生矿物对Pb、Zn等重金属元素有较强的固定作用，而次氧化带的淋溶作用造成了金属元素的大量流失；(4)与新鲜尾矿相比，硬化层中铅的可迁移性大大降低，硬化层之下尾矿样品中铅的可迁移性也不同程度降低，这是由于硫化物氧化产生的硫酸根与尾矿中的铅反应形成铅矾(PbSO_4)的缘故；(5)氧化作用使尾矿中的zn、Cu等重金属的可迁移性不同程度地增大，其中对锌的可迁移性影响最大，铜的可迁移性与铁比较相似，铅则容易与硫化物氧化形成的SO_4~(2-)反应形成铅矾(PbSO_4)；(6)为了减少尾矿污染和修复矿山环境，人们提出了各种不同的尾矿覆盖方案，本文的研究结果表明，这些方法不一定能够有效地阻滞污染元素的迁移。

Zhang Xiangning thinks, medium pattern of China will produce change further, traditional press, magazine general to Internet transition, favor what lose young generation reader inevitably otherwise; While traditional network faction is growing continuously, also will welcome the challenge of the long end a group of people of same interest such as guest of such as rich, community; TV station, broadcasting station will form Pk with network video site, in look at present, both suffer numerous not quite consistent still, basically the user teleview stage before 70 time, broadcasting station is more, and 80 after give priority to with the network, but after be in, competition will be inevitable.

张向宁认为，中国的传媒格局将进一步发生变化，传统的报纸、杂志将向互联网转型，否则将不可避免的失去年轻一代读者的青睐；传统的网络门户在持续发展的同时，也将迎来诸如博客、社区等长尾阵营的挑战；电视台、电台则将与网络视频站点形成pk，在现在看来，两者受众还不太一致，基本上70年代以前的用户收看电视台、电台较多，而80后的则以网络为主，但在以后，竞争将不可避免。在今后，媒体除了内容持续迁移互联网之外，更要满足用户个性化的需求。窄告和中国商业电讯，便是从广告收看和财经新闻发布领域，在个性化互联网上进行的大胆尝试。从现在的反馈来看，个性化互联网的是非常受欢迎、且健康、快速发展的。

Most patients' death arise from the metastatic spread of primary tumors There is an urgent need for the finding of novel anti-tumor and anti–metastatic drugs to improve the quality of life and survival rate of patents Justicia procumbens is an herb and used to reduce fever inflammation and canker in Taiwan We've detected that 0 3 μM JA could effectively inhibit the proliferation of oral cancer cells OC-2 and HSC3 but not normal oral keratinocytes in MTS assay JA-treated OC2 underwent apoptosis as suggested by increased sub-G1 DNA contents condensed nuclear morphologh and DNA fragmentiation The migration activity of OC-2 was also significantly reduced by treatment with low concentration of JA The expression of ?

大部分的口腔癌病患死於原位癌的转移和扩散，寻找有效抗癌和抗转移的药物疗法来增进病患的生活品质和存活率，对治疗口腔癌而言非常重要。爵床草是台湾民间常用草药，常被用来消炎止热和治疗口疮、乳瘤。我们利用MTS分析，发现处以0 3 μM的JA 48小时，即可有效抑制口腔癌细胞OC-2和HSC3的增生，但不影响正常口腔上皮细胞生长。OC-2经JA处理后，其sub-G1的DNA含量增加，并可观察到DNA固缩和梯度断裂的现象，说明JA可使OC-2走向细胞凋亡。除此之外，0 3 μM的JA亦可有效降低OC-2的迁移能力。

The results indicate the mutual effect exists between the single coals, which could increase the maximum of thermal weight loss obviously and has a small effect on the temperature extent of the weight loss. The main pyrolysis production of coal is coke, but the main production of waste plastics is tar; the yield of water became decrease and the gas became increase by adding the waste plastics. And the CRI and CSR decreased with the ratio of waste plastics in coal. The main ingredients of tar from blend coal are aromatic hydrocarbon and alkane, while those of waste plastics are alkane and alkene. The result of co-coking with coal and waste plastics make the light tar and the aromatic hydrocarbon increase obviously. The combustible ingredient(CO、H2、CH4) of gas from co-coking with coal increase at different ratio; Co-coking with coal and waste plastics could increase the combustible ingredient and thermal value of gas.

结果表明，废塑料与煤混合物在煤的塑性温度区间内存在明显的相互作用，使最大热解失重峰迁移，热解速率变大，且随着废塑料配比的增加呈现规律性的变化；煤热解产物固体焦炭为主，而废塑料的热解产物以焦油为主，废塑料的添加使得总体焦炭和水产率下降，焦炉煤气和焦油的产率增加，即共焦化呈现出明显的&增油减水&效应；随着塑料添加量的增加，焦炭热强度呈现劣化趋势；废塑料代替瘦煤配煤炼焦可使其比例提高到3%而不影响焦炭的质量；纯煤焦化所得焦油以芳香烃类和烷烃类为主，而废塑料热解焦油以烷烃和烯烃为主；废塑料配煤炼焦，可使得的焦油呈现&环构化&和&轻质化&趋势；废塑料的添加可使煤气中的可燃组分(CO、H2、CH4)的含量均有不同程度的增加；废塑料配煤炼焦可以优化焦炉煤气的组成，增加煤气中的可燃组分，提高焦炉煤气的热值。

There are theories which can account for the orienting feats of honeybees and migrating birds, but an ability to orient on a compass course is not enough for navigation in the proper sense .

解释蜜蜂和迁移鸟类的惊人的确定方向本领的各种理论并不缺乏，但是，若就导航一词的本意而言，那么根据罗经航向确定方向的能力，尚不能满足导航的要求。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。