查询词典 amorphous phosphorus

The result indicated that: the amount of the excess HF formed direct ratio to the yield of phosphorus pentafluoride and the optimum amount of the excess HF used is about 35%; the trickling rate of oleum shouldnt make the temperature of hexafluorophosphoric acid exceed 25 ℃ and the amount of oleum is 110% to 125% that of stoichiometry so that the content of phosphorus pentafluoride can be achieved 90%; the time and temperature of heating hexafluorophosphoric acid influenced both the yield and the content of phosphorus pentafluoride, and the optimum time should be about 30 minutes and the proper temperature was 148 to 153℃; when alcohol used asrefrigerant, the content of phosphorus pentafluoride was 94.03%, and the content can be up to 97.38%, provided that using liquid nitrogen as refrigerant.

通过实验发现，氟化氢用量与五氟化磷的产率成正比，最佳过量百分率宜在35％左右；发烟硫酸的滴加速度不能使中间产物温度大于25℃，发烟硫酸用量大于理论量10％～25％时，得到的五氟化磷纯度高于90％；六氟磷酸的加热温度对五氟化磷的产率和纯度均有影响，宜在148～153℃的范围内，加热时间应在30分钟左右；用工业酒精做冷凝介质得到的五氟化磷纯度最高只能到达94.03％，使用液氮做冷凝介质可以使五氟化磷的纯度达97.38％以上。

When studying the influence of high phosphorus concentration on Alkalescence Phosphorus in Chlamydomonas sajao lewin and Scenedesmus obliquus, the results show that the quantity of removing phosphorus is influenced by the quantity of Alkalescence Phosphorus.

在研究高磷环境对沙角衣藻、斜生栅藻碱性磷酸酶的影响时发现，单个藻细胞除磷能力的大小与碱性磷酸酶合成量有密切的关系，除磷能力随碱性磷酸酶合成量的增加而增大。

We selected wuli lake, seriously polluted lake, and used long-term laboratory sludge-dredging method to compare the difference of dredged zone and undredged zone, we conducted sludge incubated experiment of two depth of dredging to analyze the difference of nutrient''s release. We investigated the budge of phosphorus monthly and monitored the concentration of phosphorus of the water simultaneously, and analysised the change of the content of phosphorus of water body and further studied the effect of sludge-dredging on the content of phosphorus in water body.

本研究以污染严重的太湖五里湖为研究对象，对室内长效模拟和疏浚区/非疏浚区比较，进行了两种不同模拟疏浚深度的底泥培养实验，同时对疏浚后环五里湖河道进行了磷出入湖量和湖面磷含量同步调查分析，分析底泥疏浚前后水体磷含量变化，结合逐月出入湖量的初步分析，研究疏浚对湖水中磷含量的影响。

The phosphorus removal experiment implies the increasing 100 mg/L MLSS concentrations can remove about 1 mg/L TP. The phosphorus removal efficiency can be improved by the increasing rate of MLSS concentrations. When everyday increasing rate of MLSS concentrations are about 500mg/L, the phosphorus removal efficiency would higher than 90%, effluent TP would be lower than 1 mg/L. When MLSS concentrations are fluctuating, effluent phosphorus would fluctuate correspondingly. Everyday the amount of discharging excess sludge can be prejudged by the amount of influent TP.

通过对反应器的除磷效果的研究，发现污泥浓度增长100 mg／L能去除将近1 mg／L TP；发现随着污泥浓度增长速率的增加，除磷效率相应提高；当污泥浓度的增长速率增加到每天500 mg／L时，磷的去除率将高于90％，并且出水TP浓度将低于1 mg／L；发现每天排放的剩余污泥量可以根据进水TP浓度来决定；发现最佳好氧与厌氧时间比T_是0.5；溶解氧冲击指数DO_I被首次提出，作为分析溶解氧DO影响的指标。

Phosphorus furnace unit dedicated Soderberg electrode paste the successful development of its technology in Sichuan Chemical Company 30000KVA phosphorus furnace use, will break down foreign phosphorus furnace in China large-scale development of its technology block, electric furnace technology for the Chinese phosphorus chemical made a new contribution.

黄磷电炉装置专用自焙电极糊的研制成功，其技术在四川化工公司30000KVA磷炉上的使用，必将打破国外对我国磷炉大型化及其工艺技术的发展封锁，为中国磷化工电炉技术做出了新的贡献。

Fertilizer type, rate of fertilizer application and the method change of spreading manure can influence the dynamic trends of component of inorganic phosphorus model in cotton field of gray desert soil, activate fixed attitude phosphorus in the soil, raise the content of the available phosphorus in the soil, and reduce the fixing of phosphorus in the soil.

9肥料类型、施肥量以及施肥方法的变化可以影响典型灰漠土棉田无机磷组分的动态，激活土壤中固定态磷，提高土壤有效磷的含量，减少土壤磷的固定。

Topics covered include phosphines, applications of phosphorus and compounds as reagents in synthesis, the chemistry of phosphorus ylides, applications of the Wittig reaction in the synthesis of heterocyclic and carbocyclic compounds, preparation of Iminophosphoranes and their synthetic applications in the aza-Wittig reaction, phospho-transfer processes leading to bond formation, low valent phosphorus compounds and phosphorus methods in oligonucleotide chemistry.

包括的题目包括phosphines，磷的应用和作为在综合过程中的试剂的化合物，磷ylides的化学，在heterocyclic 和carbocyclic 化合物的综合过程中的威蒂格反应的应用， Iminophosphoranes的准备和在aza-威蒂格反应里的他们的合成申请，phospho 转换过程导致在oligonucleotide 化学方面的契约形成，低的化合价磷化合物和磷方法。

Topics covered include phosphines, applications of phosphorus and compounds as reagents in synthesis, the chemistry of phosphorus ylides, applications of the Wittig reaction in the synthesis of heterocyclic and carbocyclic compounds, preparation of Iminophosphoranes and their synthetic applications in the aza-Wittig reaction, phospho-transfer processes leading to bond formation, low valent phosphorus compounds and phosphorus methods in oligonucleotide chemistry.

包括的题目包括phosphines，磷的应用 Application 和作为在综合过程中的试剂的化合物，磷ylides的化学，在heterocyclic 和carbocyclic 化合物的综合过程中的威蒂格回应的应用 Application ， Iminophosphoranes的准备和在aza-威蒂格回应里的他们的合成申请，phospho 转换过程导致在oligonucleotide 化学方面的契约形成，低的化合价磷化合物和磷方法。

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。

However, in natural ecosystems phosphorus tends to disappear during the course of elemental cycle in chemosphere, meanwhile most of phosphorus in soil is unavailable to plants, and phosphorus fertilizer use efficiency was always not higher than 20 percent, as a result there is a profound significance to exploit the huge soil phosphorus bank and improve fertilizer use efficiency via biological ways.

然而，自然磷矿资源正趋于耗竭，与此同时，土壤中的磷大部分以植物难以直接利用的形态存在，并且投入土壤中的磷肥利用率一般不足20％。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。