酐

Optimal pretreatment conditions of electroless nickel plating for magnesium were decided by many experiments. Phosphoric acid technology was used to instead of acid processing by chromium trioxide and ferric chloride, and excellent coating was obtained by using dipped zinc, cyanide copper, nickel as medium.

通过多次试验确定了镁及镁合金的前处理方案，以磷酸洗的方法代替传统的铬酐加三氯化铁酸洗浸蚀的前处理工艺，配置简单，操作方便，以浸锌层、氰化铜层和中性镍层作为化学镀中间层，得到了结合力良好的化学镀镍层，获得了镁合金表面处理的新突破。

Methods The renal size ,the clearance of creatinene and the reasons caused renal damage of 1000 hospitalized aged patients were investigated.

调查2002年1月～2004年12月在我院首次住院的1000例老年患者肾脏大小、血肌酐及其清除率，并对慢性肾脏病的病因进行调查。

Two kinds of polyimide films were prepared based on the ODA and ODPA in NMP through two-step thermal or chemical imidization process and characterized by the cone and plate viscosimeter, GPC, FTIR, DSC, TGA and strain properties tests.

以4，4'-二胺基二苯醚和3，3'，4，4'-二苯醚四酸二酐为单体，采用两步法，分别经热亚胺化和化学亚胺化过程制备了两种聚酰亚胺薄膜，并对两种薄膜的性能进行了表征。

When we begin to the medicine, urine protein was measured in urine volume of 24 hour the every two day. 4. Specimen collections and laboratory check: In the 21 days of pregnant rats, infants were taken which registered weight and height after aesthesia. Cr and BUN in the blood were measured.

标本收集和实验室检查：于妊娠第21天在戊巴比妥钠(50mg/kg)麻醉下，剖宫取胎，记录胎仔体重，身长；同时抽取腹腔静脉血，分离血清以待测定血尿素氮，血肌酐；取左肾部分置于10%甲醛液浸泡固定，待用HE染色、PAS染色及免疫组织化学染色；另取部分肾脏剪成体积约1cm〓大小组织块，生理盐水冲洗至发白，-70℃保存。

The purpose of this work is to develop new methods for syntheses of polyimides derived from chlorophthalic anhydrides.

本工作的目的是以氯代苯酐和二胺为原料，制备双氯代酞酰亚胺单体，然后进行聚酰亚胺合成方法的研究，以达到减少合成步骤，降低其生产成本的目的，主要内容如下： 1由双氯代酞酰亚胺与双酚A在不同体系中进行聚合反应，发现双酚是否完全成盐和聚合体系含水量是决定聚合物分子量的关键因素。

The binding energies assigned to each of these peaks is in accordance with the accepted value for these functionalities [18,28]. The O–C_O high energy binding peak may include anhydrides, esters, and carboxylic acid groups, if present. The C1s spectrum of the 40W films could be fitted with a minimum of 5 peaks according to the above notations, as shown in Fig.

装订 被指定给每一个这些峰巅的能源是符合那为这些功能性〔18，28 的一般承认的价值。O－C_O 高的能源装订山顶可能包括醋酐，酯，和含有羧基的酸聚集，如果呈现。40W 的 C1s 光谱电影可能根据配备有 5 的最小量峰巅到那在记号法上面，如图 3 A 所示。

Thermal imidization of the polyamic acid derived from BPADA and BAPS was investigated mainly by GPC and FTIR equipped with an in-situ hot cell.

利用GPC、原位FTIR测定了长链聚酰胺酸PAA由双酚A二酐与 4 ，4′-二(4-胺基苯氧基二苯酚制备的热环化过程。

The chemistry of CAPAs was almostunexplored since it was proposed in a prebiotic reaction of inorganic polyphosphates with amino acids.

氨基酸-磷酰胺内酸酐(Cyclic acylphosphoramidates，简称CAPAs)是一种集磷酸-羧酸混酐和磷酰胺两个官能团于一身的磷酸活化的氨基酸。

Cyclic acylphosphoramidates (2-hydroxy-2-oxy-1,3,2-oxazaphospholidine-5-ones,CAPAs) are phosphate activated amino acids possessing both a carboxyl-phosphorylanhydride and a phosphoramidate bond in a ring.

氨基酸-磷酰胺内酸酐(Cyclic acylphosphoramidates，简称CAPAs)是一种集磷酸-羧酸混酐和磷酰胺两个官能团于一身的磷酸活化的氨基酸。

The concents of two neurotransmitters don't have linear correlation with SCr, that is higher level of SCr doesn't mean lower brain DA and 5-HT concent.

急性肾功能衰竭并发脑病时，并非血肌酐值越高，脑组织中多巴胺、5-羟色胺浓度越低，二者无线性相关性。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。