磷酰胺

Fresh asparagus with a variety of amino acids, carbohydrates, vitamins and calcium, phosphorus and other minerals, has high nutritional value, in particular the asparagine contained in it not only has the diuretic function, but also relieves fatigue and is of benefit for our body.Therefore, asparagus is one of the hot food welcomed by the people at home and abroad.

新鲜芦笋含有多种氨基酸，碳水化合物，维生素及钙，磷等矿物质，具有较高的营养价值，特别是含有较高的天门冬酰胺，不仅有利尿功能，而且有解除疲劳和补精强体的功能，因此，芦笋是受国内外人们欢迎的热门食品之一。

E-44 epoxy resin,"¨" PF2A2-131, PF2A2-141 Brand Bakelite powder,"Golden Harvest card" 40 percent different, such as rice blast net EC was namedproducts, o-toluene sulfonamide amide, sodium benzoate eight product quality by the title of Zhejiang Province; 25% quinalphos National New Product by Product Jinlong Award.

熊猫牌"E-44环氧树脂、"熊猫牌"PF2A2-131、PF2A2-141牌号酚醛塑料粉、"嘉禾牌40%异稻瘟净乳油等被评为部优产品，邻甲苯磺酰胺、苯甲酸钠等八个产品获浙江省优质产品称号；25%喹硫磷产品获国家新产品金龙奖。

The method applied is in accordance with that of the PRC National Standard for the determination of urease activity in soya bean products.

参考了中华人民共和国国家标准大豆制品中尿素酶活性测定方法，进行了正丁基硫代磷酰三胺活性的测定。

O-(1-Arylseleno-3-azido)isopropyl-O-2-(N3-tegafur)alkyl thiophosphate (3a～3f) were obtained via nu-cleophilic ring-opening of sodium azide to 2a～2f in dry DMF at room temperature, and their antitumor activities were tested.

以无水N，N-二甲基甲酰胺作溶剂，室温下，叠氮化钠中对2a～2f进行亲核开环，得到O-(1-芳硒基-3-叠氮基)异丙基-O-2-(N3-替加氟)乙基硫代磷酯。

Acid phosphatase from Branchiostoma beleheri was isolated and purified by ammonium sulfate fractionation,Sephadex G-75 gel filtration and CM-cellulose chromatography under acid condition.

从厦门文昌鱼Branchiostoma belcheri分离提纯酸性磷酯酶(EC3.1，3.2)，进一步经Sephadex G-75和羧甲基纤维素(CM-52)柱层析纯化，获得聚丙烯酰胺凝胶电泳单一纯酶制剂，比活力为351μm/min mg。

The results showed that the epoxy resin with polyphosphoric cyanamine urea had better flame retardancy and smoke suppression than pure epoxy resin.

研究结果表明，聚磷酰氰胺脉对环氧树脂具有非常优异的阻燃、抑烟功效。

The paper reports the research concerned with the activity of the inhibitor, the duration of validity, and the kinetics of enzyme-catalyzed reactions of the soil urease inhibitor N - tiophosphoric triamide prepared by Dalian Institute of Light Industry .

本文报道的研究工作是关于大连轻工业学院合成的土壤尿素酶抑制剂正丁基硫代磷酰三胺的最佳研究浓度、有效期及酶促反应动力学。

Soil urease ; inhibitor ; Nitrogeny ; N- tiophosphoric triamide

土壤尿素酶；抑制剂；氮耐尔；正丁基硫代磷酰三胺

The intermediates 2a～2f of cyclic (1-arylseleno)glycerol phosphate and tegafur conjugates were synthesized by one-pot reaction of hexaethyl phosphorous triamide, activated by a catalytic amount of iodine, with (N3-tegafur)alkanol, 1-arylselenoglycerol and sulphur successively in refluxing benzene.

以碘作催化剂，无水苯为溶剂，六乙基亚磷酰三胺依次与羟乙基替加氟、1-芳硒基甘油及硫反应，得中间体硒代环甘油磷脂替加氟缀合物2a～2f。

The Beckmann rearrangement of cyclohexanone oxime, phosphorus pentoxide (P_2O_5) and dimethyl formamide raction system into caprolactam was studied.

研究了以环己酮肟、五氧化二磷(P_2O_5)、二甲基甲酰胺组成的反应体系进行Beckmann重排制备己内酰胺工艺，考察了不同溶剂、催化剂用量、温度、浓度及水分含量对重排反应的影响。

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。