磷酸盐

P species, main as Ca-P and organic P forms, showing rego〓 pollution and karst area of lake watershed, inorganic P〓 related to Ca〓, Al〓, Fe〓 content in the overlying water, sediments is not a simple reservoir of dissolved phosphate and particle phosphate, near the interface, near 98% of total P existed as active forms, they may release to overlying water through reduction dissolution, deadsorption in the period of early diagenesis, only 2% of P as fixed forms, which mainly remained in the sediments, sediment was an important resource of nutrients of ovrelying water.

高原湖泊沉积物中的磷以有机磷和Ca-P形式存在为主，反映了高原湖泊流域污染和碳酸盐地区的整体背景，无机磷形式与水体吸附体Ca〓，Al〓和Fe〓的含量有关。底部沉积物不是溶解性磷酸盐和颗粒磷酸盐的长期储存场所，几乎有98%的磷是活性的形态存在，它们通过早期成岩作用在还原条件下还原，溶解和释放又重新回到上覆水体，只有2%的磷以固〓态的形式稳定保存于沉积物中，因此，沉积物为水体营养程度的重要来源。

This thesis focuses on the syntheses, structures, and properties of new cobalt phosphates and cobalt phosphites.

本论文主要对钴磷酸盐和钴亚磷酸盐新化合物的合成、结构及性质进行研究，依结构特性及组成可以区分为三类

In this thesis, we described the synthesis, crystal structure and some properties ofa series of block metal phosphites and transition metal phosphitesand summarized the rules of synthesis and compared the difference of structures andsynthesis.

本论文主要研究在中温水热条件下，第IIIA族金属Ga，In和过渡金属V，Cd的亚磷酸盐微孔材料的合成与表征，探讨亚磷酸盐微孔材料在结构上的特点和组成上的多样性。

Up to date, transition metal phosphites have been extensively studied, the compoundsof V, Fe, Co, Mn, Zn and Cr with their various properties havebeen reported.

迄今为止，过渡金属亚磷酸盐化合物得到了较为深入的研究，一系列 V， Fe， Co， Mn， Zn和 Cr的亚磷酸盐化合物被合成出来，并且一些关于这类化合物的性质也有了相关的报导。

Under mild hydrothermal conditions, using DETA as structure-directing agent,two three-dimensional gallium phosphites (H3DETA)Ga3(HPO3)4F4 (1) andGa2(HPO3)3 (2) have been synthesized and characterized by single crystal X-raydiffraction.

在合成方面，主要研究作为模板剂的有机胺类的改变对产物结构的影响；通过引入[HPO3]2-的结构基元代替传统的[PO4]3-结构基元，设计合成系列具有新颖结构的无机微孔材料并探讨亚磷酸盐和磷酸盐微孔材料在合成以及骨架结构方面的特点和差异。

Besides, the formation environment of phosphates is also discussed.

此外，笔者还从磷酸盐稀土元素的特征值探讨了调查区磷酸盐形成时的氧化还原环境。

Vanadium phosphate is one of the most important classes of open-framework transition metal phosphates.

钒磷酸盐是孔道结构过渡金属磷酸盐中重要的一类。

The precursor was prepared with ammonium zinc phosphate and lithium carbonate as materials via solid state reaction at room temperature.The target product was got after baking the non crystals precursor of the compound.

人们从对有层状结构的磷酸盐性质的研究中获知，大量具有层状结构的磷酸盐化合物能够承受离子交换而且还具有良好的催化性能。

In cake besides containing sugar, still contain more phosphate, and calcium of meeting block up is in this kind of phosphate the metabolization inside body.

糕点中除了含糖外，还含有较多的磷酸盐，而这种磷酸盐会阻碍钙在体内的代谢。

As a conclusion, it was proposed that, according to the characteristics of the wastewater to be treated, adding some simple organic materials with the ability of self-fermentation into the influent might help in speeding up the start-up course of anaerobic absorption system.

其中，前者属于生物除磷机理，即在厌氧条件下聚磷菌利用体内多聚磷酸盐分解产生的能量吸收并储存有机物，同时释放出ATP水解产生的正磷酸盐。后者则来自于对最初的生物除磷生化代谢模式(Comeau，1986)的修正Arun

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。