磷酸

The influence of excess anhydrous hydrogen fluoride, the amount of oleum and its trickling rate, the time and temperature of heating hexafluorophosphoric acid, and refrigerants on the yield and the content of phosphorus pentafluoride was studied.

在此过程中，本文研究了无水氟化氢过量百分率、发烟硫酸用量及滴加速度、六氟磷酸的加热时间、加热温度以及冷凝介质等因素对五氟化磷产率和纯度的影响。

Objective: To clone and analyze the nucleoside triphosphate hydrolase gene of Toxoplasma gondii.

目的：克隆并分析我国刚地弓形虫三磷酸核苷水解酶的编码基因。

Objective:To clone and analyze the nucleoside triphosphate hydrolase gene of Toxoplasma gondii.

大 目的：克隆并分析我国刚地弓形虫三磷酸核苷水解酶的编码基因。

The second part is about the kinetic study of the hydrolysis of a phosphate catalyzed by our complex systems.

第二部分是关于我们的配合物体系对一种磷酸酯水解的仿生催化的动力学研究。

Up to now, only a few well-defined metal complexes have been found to be able to hydrolyze DNA phosphodiester bond.

迄今为止，人们仅发现了为数不多的能够水解断裂DNA的磷酸二酯键的金属配合物。

Objective To study the effect of hypertonic stimulation on the expression of phosphotyrosine in supraoptic nucleus of rat.

目的 研究高渗刺激对大鼠视上核酪氨酸蛋白磷酸化的影响。

Results:The incidence of hypocalcemia in FDP group was 64.10%, and the one in nonFDP was 15.58%.

结果：：1， 6二磷酸果糖组低钙发生率64.10%，非果糖组低钙发生率15.58%，，用四格表资料的χ2检验，果糖组与非果糖组的χ2=38.01，P.05，两组比较差异有统计学意义。

The addition of sodium hypophosphate must be appropriate , if added much , W and SiC contents in the coatings were decreased , So the addition of sodium hypophosphate must be controlled

次亚磷酸钠的添加量应适中，添加过多会降低镀层中 W 和 SiC 的含量，一般应控制在10~15g/L 之间。

The hardness and wear resistance of the RE-Ni-W-P-SiC composite coating increase with the rise of SiC and sodium tungstate concentrations in the bath respectively , while the hardness and wear resistance of the RE-Ni-W-P-SiC coating decrease with increasing sodium hypophosphate concentration in the bath.

随着镀液中次亚磷酸钠浓度的升高，镀层的硬度和耐磨性均降低。

According to the properties of acrylic acid series polymer of scale inhibition. A kind of amphiprotic tercopolymer of acrylic acid, acrylamide and dimethyldiallylammonium chloride is synthesised, with water as solvent, persulfate and hypophosphate as initiator. Through the tests, the copolymer can show the good scale inhibiting effect and bactericidal action, and become a multifunctional scale inhibition.

本研究根据丙烯酸聚合物阻垢剂的特点，使用过硫酸铵(NH_4_2S_2O_8、次亚磷酸钠(Na_2PO_3)构成的氧化——还原型引发剂，水为溶剂，合成了新型可用于处理工业循环冷却水的丙烯酸—丙烯酰胺—二甲基二烯丙基氯化铵两性型三元共聚物。

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。