二磷酸

The extraction equilibrium constants of Nd , Eu , Am in the system of seven monoacidic organophosphorus compounds dodecane 1. 0mol/l NO〓are reported. The dependency of the extractability on the PO〓function group、bonding charactor、metallic ion species and the structure of substitute has been examined.

给出了七个烷基磷酸的正十二烷熔液从1.0mol／lNO〓水溶液中萃取Nd、Eu、Am的平衡分配常数Kex，考察了萃取剂PO〓官能团、萃合物成键特性、金属离子及取代基结构与萃取性能间的关系，发现了：（1）可运用取代基自由能加和模型预测辛基膦酸辛基酯对La、Eu、Nd、Am等三价离子的平衡分配数据。

Understand and familiarize with clinical uses of β receptor blocker, emictory, PDE; phosphodiesterase suppressantin.

熟悉β受体阻断药，利尿药及磷酸二酯酶抑制药等在治疗充血性心力衰竭中的应用。

The results showed that BTH, SA, OAA and Na2SiO3 had significant induction effects, and the optimum concentration of four chemicals for resistance induction of melon against Erysiphe cucurbitacearum were 0.35, 1.0, 30 mmol/L and 10 mmol/L respectively.

各种诱导剂的最适诱导浓度分别为BTH 0.35 mmol/L、SA 1.0 mmol/L、OAA 30 mmol/L、Na2SiO3 10 mmol/L；适宜浓度下的诱导效果分别为：72.4%、49.9%、43.4%和34.9%。磷酸氢二钾(K2HPO4)在供试浓度范围内对甜瓜抗白粉病的诱导作用不显著。

Ni-P-mCMC/mCS bipolar membrane was prepared from carboxymethyl cellulose modified with phosphorylated agent as a cation exchange layer and chitosan modified with glutaraldehyde as an anion exchange layer. The electrolysis cell was constituted by Ni-P-mCMC/mCS BPM as a septum for electrogenerating furfural alcohol and furoic acid.

以磷酸化试剂改性羧甲基纤维素钠制备了阳膜层，以戊二醛改性壳聚糖制备了阴膜层溶胶，将阴膜层溶胶流延于阳膜层上，制备了P-mCMC/mCS双极膜，而后以化学镀方法在阳膜层表面镀镍，制备了Ni-P-mCMC/mCS双极膜，并应用于成对电合成糠醇、糠酸。

It would be interesting to further evaluate phosphodiesterase-type 5 inhibitors as a new therapeutic approach to diabetic gastroparesis.

未来有兴趣研究评估，第5型磷酸二酯脢受体抑制剂作为一种糖尿病性胃病的新疗法。

Biological characteristics of Curvularia lunataBoedijn had been preliminarily studied. Optimal mediums for pathogen growth were PSA,PDA and OMA.For mycelia growth,sporulation and conidial germination of pathogen,optimal temperature was 25～30℃,and pH 5～9.Among the tested carbon and nitrogen resources,sucrose,glucose,carbamide,sodium nitrate,etc were beneficial for mycelia growth and sporulation.The conidia germination is strict in RH requirement:Conidia can germinate at RH 81%～98%,or have 100% germin...

香蕉大灰斑病菌适合生长的培养基有PSA、PDA和OMA；菌落生长、产孢和孢子萌发最适宜的温度为25～30℃，pH 5～9；在碳源和氮源中，蔗糖、葡萄糖、尿素、磷酸氢二氨和硝酸钠有利于病菌生长和产孢；分生孢子萌发对湿度有严格的要求，RH≥80%以上分生孢子萌发，随湿度增加萌发率增高；光照对菌丝体无显著影响，光暗交替有利于孢子的形成；孢子致死温度为55℃(10min)。

According to the research on the factors which affect the bacteria's growth and spore-forming in the liquid media composed mainly of starch, glucide, yeast extract, K2HPO4, and CaCO3, we found that with glucose as optimum carbonhydrate, at 30 ℃, pH 7.6, ratio of air volume to that of liquid 1.5:1, culture time for 16 h, the bacteria grew best.

在以可溶性淀粉、酵母膏、磷酸氢二钾、糖类、碳酸钙为主要成分的液态培养基中对影响菌株生长和孢子生成因素进行研究。

It has yearly produces 60,000 tons monoammonium phosphates, 18,000 ton chlorinated paraffin wax, 6000 tons nitrocottons, 5000 tons glutaric dialdehydes, 4000 ton acrolein productivities.

具备年产6万吨磷酸一铵、1.8万吨氯化石蜡、6000吨硝化棉、5000吨戊二醛、4000吨丙烯醛生产能力。

Allantoin was synthesized from glyoxylic and urea as raw materials using organic acid such as formic acid,oxalic acid and organic sulfonic,and one or two of organic acids such as hydrchloric acid,sulfuric acid and acetic acid catalyst.

以乙醛酸和尿素为原料，有机酸(如甲酸、乙二酸、有机磺酸等)、无机酸(如盐酸、硫酸、磷酸、醋酸等中的一种或两种)作催化剂合成了尿囊素产品。

Sodium Phosphate, Dibasic, Heptahydrate

磷酸钠，二盐基的，七水化物，试剂

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。