查询词典 phosphorus

The three isomers structures of 3 were discussed in detail based on the calculation results. Among the six bonds in 3, the P_O bond between the phosphorus and carboxyl oxygen O3 was the weakest one, and could be easily broken to form a new penta-coordinate intermediate 4 which could yield the phosphoryl N → O migration product 5 by breaking the weaker P_N bond.

在六配位磷中间体3的6根键中，丝氨酸的羧基氧O3与磷之间的键最弱，最易断裂生成新的五配位磷中间体4， 4的P_N键断裂得到磷酰基的N→O转位反应产物5。

It is studied the synthetic conditions of phosphoryl amic type P-N intumescent flame retardant from bisphenol A and phosphorus oxychloride and melamine. And the fire retardance of P-N intumescent flame retardant on poplar wood were studied by thermogravimetric analysis and burning test.

研究了以双酚A、三氯氧磷和三聚氰胺为原料合成磷酰胺类磷氮系膨胀型阻燃剂的反应条件，并用热重分析和灼烧实验方法初步研究了它对杨木粉的阻燃特性。

Two other low-input ways to improve the soil involve using manual manure or nitrogen and phosphorus as photolysis fertilizer .

该研究发现的可以提高高粱产量的第五种方法是减少农作物耕耘。

A method for determination of silicon and phosphorus content in coal and coke by photometry was proposed in the paper.

研究了用光度法联合测定煤或焦炭中硅与磷的含量。

This article is focused on the analyzing method of the total phosphorus content,calcium,magnesium,heavy metal,residue on ignition and water content of phytin .

植酸钙镁用途极其广泛，并具有非常重要的生理功能，作者根据研究工作实际经验，摸索出了一套有效的检测方法。

Influence of Glomus fasciculatus and soil phosphorus on Verticillium wilt of cotton. Phytopathology

丛枝菌根菌诱导植物抗病的内在机制，应用生态学报，2003，14（5）∶ 819-822

Placation organic fertilizer in soil significantly increased content of available phosphorus, and that of PMSW(P-enriched MSW fertilizer treatment) treatment was higher than others.

在植物生育(来源：ABce7cC论文网www.abclunwen.com)期内，无机磷的Ca_(2-)P，Ca_(8-)P，Al-P 的含量明显降低，并且两种供试作物作物的趋势相同。

From plantlet stage to harvest stage, the Nitrogen,Phosphorus and Potassium element was continuously being absorbed in by lily.

营养元素的吸收高峰期在半枯期前后至采收期历时37天，氮、磷、钾的吸收比例为

The high phosphorus cast iron brake is the important components which the railroad vehicles apply the brake, when the work withstands the high temperature, the high press plier pressure therefore requests the organization to be compact, must carry on the strict ultrasonic testing and mechanics and the transformation performance examination, the specification is strict.

高磷铸铁闸瓦是铁道车辆制动的重要零件，工作时承受高温、高压，因此要求组织致密，必须进行严格的超声波探伤和力学及物化性能检验，技术要求严格。

We can supply a large number of phosphorus trichloride for exporting. Do as your special requests with the content of Arsenic, Fe, Plumbum, Sulphate and other materials.

我公司可大批量生产供应，用于出口的对砷，铁，铅，硫酸盐等不同含量的三氯化磷。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。