The electronic structure and bonding of various phosphorus compounds.
各类有机磷化合物的电子结构与成键。
The most common toxicant were medicine, pest killer and organic phosphorus compounds.
毒物品种多，分布广泛，常见毒物为药物、灭害药及有机磷农药；
Penta-coordinated phosphorus compounds are very important in organic phosphorus chemistry and biological chemistry.
五配位磷化合物在有机磷化学和生物化学中具有重要作用。
By using the phosphorus compounds as flame retardant, the regular block flame-retardant polyester was formed through copolymerization.
以磷系化合物为阻燃剂，采用共聚的方法形成规整的嵌段阻燃聚酯。
The synthetic methods of bioactive organophosphorus compounds with phosphorus-sulfur bond were reviewed, and some reactions in this paper were discussed.
综述具有生物活性的含磷硫单键的有机磷化合物的合成方法，并对一些反应作出评述。
Mineral compounds are made of elements such as sulphur, phosphorus, iron, potassium, sodium, and calcium.
无机化合物是由诸如硫、磷、铁、钾、钠和钙等元素组成。
According to the study agriculture is responsible for 43.7% of the nation's chemical oxygen demand (the main measure of organic compounds in water) 67% of phosphorus and 57% of nitrogen discharges.
研究表明，水质43.7%的化学需氧量(测量水质有机化合物的主要指标)、67%的含磷量和57%含氮量应归咎于农业。
According to the study, agriculture is responsible for 43.7% of the nation's chemical oxygen demand (the main measure of organic compounds in water), 67% of phosphorus and 57% of nitrogen discharges.
研究表明，水质43.7%的国家化学需氧量(测量水质有机化合物的主要指标)、67%的含磷量和57%含氮量应归咎于农业。
Phosphorus has valence 3 or 5 in compounds, which have many USES in industry.
磷在化合物中的原子价为3或5，工业用途很多。
Tripodal compounds with boron or phosphorus atoms at their centers.
以硼原子及磷原子为中心的三脚架结构化合物。
Plants get most of their phosphorus from the decomposing remains of dead plants and animals — in other words, from organic compounds.
植物获得的大部分磷是来自动植物残体的分解，换句话说是来自有机化合物。
With the compounds of phosphorus as an example, in this essay the writers have discussed how to make multimedia courseware and some applications of CAI courseware in inorganic chemistry teaching.
以“磷的化合物”教学为例介绍了多媒体课件的制作，并初步探讨了CAI课件在无机化学教学中的应用。
Also provided by this invention are animal feed compositions that are supplemented with boron containing compounds and which have reduced phosphorus content.
本发明还提供增补了含硼化合物并具有减少了磷含量的动物饲料组合物。
A solution of a tin compound and a solution of compounds of antimony, phosphorus, etc. are added to a suspension obtained by suspending the titanium dioxide.
向二氧化钛的悬浮液中加入锡化合物的溶液和锑、磷等化合物的溶液。
The extractants used in gold recovery include modified amines, quaternary ammonium salts, alkyl phosphorus esters of oxides and guanidino-based compounds.
包括改性胺，季铵盐，磷氧化物及胍类萃取剂等。
Phosphorus and its compounds are non renewable and non replaceable limited resources.
磷是一种不可更新、难以替代的有限自然资源。
There are lots of bacteria, protozoan and metazoan species immobilized on the carrier surface in G-BAF, which can enhance the removal effect of nitrogen, phosphorus and refractory organic compounds.
G -BAF的载体表面附着有大量的细菌以及多种形态的原、后生动物，增强了对氮、磷及难降解有机物的去除能力。
There are lots of bacteria, protozoan and metazoan species immobilized on the carrier surface in G-BAF, which can enhance the removal effect of nitrogen, phosphorus and refractory organic compounds.
G -BAF的载体表面附着有大量的细菌以及多种形态的原、后生动物，增强了对氮、磷及难降解有机物的去除能力。
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