磷

The amount of total phosphorus is one of the most important indexs to judge surface water.During the flood,detecting data show that the hi gh am ount of total phosphorus mainly come from phosphorus absorbed on mud,but the am ount of dissolved phosphorus is low.The amount of total phosphorus in surface wab~r declines gradually with the prolonging of static balance time.

地表水中总磷含量高低是评定水质优劣的一项重要指标，分析数据表明丰水期中总磷主要来源于泥沙中吸附的有机磷和无机磷，而溶解态磷含量较少；水样中总磷含量随着自然沉降时间的延长而逐渐降低。

On the basis of denitrifying phosphorus removal theory, the mechanism and process of denitrifying phosphorus removal were summarized and the capability of denitrifying phosphorus removal was compared with conventional process.

在介绍反硝化除磷理论的基础上，对反硝化除磷机理和工艺作了综合概括，并与传统好氧除磷进行了比较，重点说明了反硝化聚磷菌的研究现状和最新反硝化除磷工艺的特点。

The increasing of soil Bray-1 phosphorus was significantly correlated to the dissolved labile phosphorus (p 0.001), and the phosphorus leaching loss under the precipitation of two-times of normal precipitation is more than 3.6 times than that of normal precipitation.

生物固形物的施用会造成表层0-10 cm土壤Bray-1磷的累积，由於土壤中Bray-1磷浓度与洗出液中溶解性反应磷的流失量有显著相关(p 0.001)，且两倍雨量淋洗下洗出液中磷的流失量是正常雨量下的3.6倍，因此，生物固形物的施用仍须考量磷流失的风险。

But the glass-transition temperature of the polymer decreased to 96℃. When the cuing agent, PN was replaced by diphenyldiaminomethane, the V-0 rating could be achieved with the least content (3.68 wt% P and 0.83 wt% N) and Tg was increased to 139℃. The cyanate ester- containing PN was synthesized by phosphorus-containing PN and cyanogen bromide.

为了减少磷的用量，将PN改成含有氮的硬化剂(Diphenyl diaminomethane， DDM)，利用DDM中的氮和含磷PN的磷产生氮磷共乘阻燃效果，可使磷用量下降至3.68%，氮含量0.83%即可达V-0级，而Tg也上升至139.83℃。

On the basis of experiments, the mechanism of phosphorus gettering for crystalline silicon were suggested.

本文在对常规磷吸杂的基础上，研究了晶体硅材料的变温磷吸杂和快速磷吸杂，并在实验的基础上对晶体硅材料磷吸杂机理做了深入的研究，得到了如下主要结果：对晶体硅材料来说，恒温磷吸杂有一个最佳的吸杂温度范围，高于或低于该温度吸杂效果都不理想。

Tris-(1-aziridinyl)- phosphine oxide and 2-[bis-(2-chloroethyl)-amino]-tetrahydro-1, 3, 2-oxazaphospholidine-2-oxide(Ⅲ, B-518) possess inhibitory action against a variety of animal tumours and have been used clinically. Recently, bis-(1-aziridinyl)-phosphinyl carbamic acid ethyl ester(Ⅱ, AB-100) was found to possess significant activity with low toxicity on experimental animal tumours.

双(2-氯乙基)氨基磷酰二氯与乙烯亚胺在脱水苯或对氧六环中并在三乙胺的存在下进行缩合，生成N，N-双(2-氯乙基)-N′，N-二乙烯基-磷酰胺；与双巯基或双氨基化合物作用，则生成相应的环状磷酰胺、磷酰胺酯以及磷酰胺硫代酯氮芥类化合物。

In the first cultivation stage,as relatively high concentration of phosphorus,phosphorus from water column was removed to a certain extent by periphyton.The end of the incubation,as low concentration of phosphorus periphyton releases phosphorus to water column instead of removal phosphorus from water,this may closely relate to the alkaline phosphatase secreted by periphyton in water body.

从培养过程中水体磷的浓度变化来说，培养初期，水体中磷的浓度比较高，附着生物对其有一定的去除作用；培养后期，水柱中磷的浓度比较低，附着生物不但不去除水中的磷，而且还向水柱中释放磷，这可能与附着生物向水体分泌碱性磷酸酶密切相关。

According to nitrogen and phosphorus contents in grain, leaf and stem of wheat parent materials, 133 wheat parent materials were divided into nitrogen high-efficient parents, low-ability parents in absorbing nitrogen and nitrogen low-efficient parents and team were also divided into phosphorus lowefficient parents, phosphorus-wasted parents and phosphorus high-efficient parents, cluster analysis was adopted in the paper.

根据小麦亲本材料子粒、叶片和茎秆的氮、磷含量，采用聚类分析，将133份小麦亲本材料分成了氮高效、吸收氮能力差和氮低效3类，和磷高效、费磷和磷低效3类，同时还筛选出了7个氮素利用效率和磷素利用效率均较高的亲本。

Compared with the control treatment, the content of the different phosphorus forms and total phosphorus in wheat grain and labile inorganic P, unknown forms of P and total phosphorus in stems increases significantly under OM treatment. In wheat stem, the content of labile organic phosphorus and lecithoid phosphorus under NP treatment is higher than under other treatments.

与对照相比，单施有机肥能显著增加小麦籽粒各形态磷、全磷和茎秆活性无机磷、未知形态磷、全磷含量； NP处理茎秆有机磷含量显著高于其他处理。

Vitamin D_3 levels are generally considered imperative for mineral metabolism in most animals, particularly to the surface-dwelling animals, because of its central role via mediating absorption and reabsorption of mineral respectively in intestine and kidney, and direction to the skeleton mineral.

维生素D是哺乳动物维持机体钙磷平衡的基础，维生素D促进小肠对钙磷的吸收，肾脏对钙磷的滤过、重吸收，钙磷在骨骼中的沉积与释放，在钙磷代谢中具有决定性调节作用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。