The results show that coal mining spoils contributed heavy metal pollution of the coal mining soil and heavy metals accumulation is caused by coal mining spoils piled up, catamorphism and eluvium.

由此可見1313午夜精品，礦業(yè)開采活動對當(dāng)?shù)赝寥乐亟饘俸坑幸欢ǖ呢暙I(xiàn)，但不同的重金屬元素在礦區(qū)土壤中的積累表現(xiàn)出差異性。

Current peaks for different spins in the Ⅰ-Ⅴ curve split. The confined"light"hole energy levels of the QW turn out to be an effective tunnelling channel for both"heavy"and"light" holes. Although considerable tunnelling current originate from the"heavy"hole state in the emitter region, the current in the collector is mainly carried by the"light"hole state.

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In this study we use the oligomers of amino ethylene series as matrix and introduce dithiocarbamate group to adsorb merely heavy metal ions. Because of its special structural characteristics , dithiocarbamate can combine with a great number of heavy metal ions to produce insoluble complex compound except for alkali metals and alkaline earth metals.

本研究系將氨基乙烯系列之寡聚物(oligomers of amino ethylene series)當(dāng)做基質(zhì)引入只對重金屬離子具有特殊螯合能力之荒酸鹽911亚洲精品，除了與堿金屬及堿土族外荒酸鹽與其他重金屬離子都能形成不溶性錯合物。

The accumulation factors of heavy metal in different kinds of leafy vegetables decreased with the increase of the extractable heavy metal concentration, which can be described best by the exponential equation y=ax(superscript b.

不同品種蔬菜對各重金屬的富集系數(shù)隨可提取態(tài)重金屬含量增加呈冪函數(shù)形式遞減爱搞无码在线，且遞減趨勢與土壤中可提取態(tài)重金屬含量范圍密切相關(guān)综合欧美亚洲日本。

If the two fall out of sync with each other, the heavy driver can compensate the heavy filler.

如果兩者不一致，那么多開車的人就可以補(bǔ)償多加油的人最大黄色网站一级在线。

Although I just graduated from the university, does not have the work experience actually, but I believed that expensive unit such heavy ability, the heavy level, reopen likely develop, the far-seeing unit, can certainly ability, the level and the experience equates regards it.

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The purposes of this study were to develop a sequential chemical extractions scheme suitable to fractionate the forms of heavy metals associated with phosphate in neutral and alkali soils contaminated with heavy metals.

許多學(xué)者提出重金屬連續(xù)萃取法(sequential chemical extractions国产真人又黄又大一级， SCE)研究重金屬存在型態(tài)大多忽略和磷酸鹽之相關(guān)性，本研究擬提出適當(dāng)?shù)倪B續(xù)萃取步驟av人人摸人人爽人人捏人人操，探討中性及堿性污染土壤中重金屬與磷存在型態(tài)的分布及其相關(guān)性日韩中文字幕在线大全视频，并探討用鹽酸清洗此等土壤時，其可能移除重金屬之型態(tài)及部份植物養(yǎng)分成份被移除的程度啊啊啊啊啊啊小黄片。

It has many potential applications such as producing and upgrading heavy water, removing tritium from light water or heavy water, and recovery tritium for fusion reactor.

本論文的主要研究內(nèi)容分為四部分：憎水催化劑的設(shè)計(jì)和制備免费播看完整大片40分钟，憎水催化劑的性能評價，氫-水液相催化交換工藝研究以及電解結(jié)合催化交換工藝流程的理論計(jì)算熟女视频国产精品。