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Racemic backbones 2-amino-2'-hydroxy-6,6'-dimethyl-l,l'-biphenyl la and 2-amino-2'-hydroxy-4,4',6,6'-tetramethyl-l,1'-biphenyl 1b were synthesized from o-methylaniline and 2,4-dimethylaniline via nitration, diazotation/iodination, Ullmann coupling, selective reduction, diazotation/hydrolysis and hydrogenation.

从邻甲苯胺及2，4-二甲基苯胺出发，经过硝化，重氮化-碘代，偶联，单还原，重氮化-水解及还原反应合成了消旋体骨架2-氨基-2'-羟基-6，6'-二甲基-1，1'-联苯1a和2-氨基-2'-羟基-4，4'，6，6'-四甲基-1，1'-联苯1b。

We have developed a simple and easy-handling procedure for copper-catalyzed cyanation of aryl halides using K4[Fe_6] as the cyanide source. The present procedure has ligand- and base-free advantages, and was accomplished under the conditions of exposure to the air without degassing of the solvent.4. We carried out the selective control of preparation for phenyl ether and phenol from iodobenzene with 10 mol% of Cu_2·H_2O as the catalyst under the condition of exposure to air.

这个程序有无配体无碱的好处，并能够在暴露于空气的条件下进行，溶剂也不用脱气。4、空气气氛下，用10 mol%的Cu_2·H_2O催化碘苯偶联，实现了制备二苯醚和苯酚的选择性控制：即在有(来源：Aa955BC55论文网www.abclunwen.com)机溶剂NMP中实现了碘苯直接制备二苯醚的Ullmann反应，在H2O中实现了碘苯直接制备苯酚。

A new selective electrode based on nefopam- iodomercurate molecular association complex is reported.

报道一种以平痛新与碘汞酸盐形成的分子缔合物为电活性物的新型PVC膜平痛新离子选择电极。

Methods: Glass electrode,iodometric method,disodium EDTA titration,silver nitrate titration,fluoride ion selective electrode.

玻璃电极法、碘量法、乙二胺四乙酸二钠滴定法、硝酸银滴定法、氟离子选择电极法等。

Experimental evidence of selective axonal regeneration in allogenic and isogenic chambers.

乳鼠坐骨神经条件培养基促进周围神经再生的实验研究。

Methods SECs were isolated by collagenase perfusion combined with isopycnic centrifugation in a two-step percoll gradient and selective adherence, and identified by morphologic observation under light microscope, by immunocytochemistry for CD14 and Ⅷfactor related antigen, by immunofluorescence staining for RECA-1 and fenestrations under SEM.

方法用胶原酶灌注结合Percoll密度梯度离心加选择性贴壁的方法分离SEC；用光镜形态学、Ⅷ因子和CDl4免疫细胞化学染色及RECA.1单抗间接免疫荧光法及SEM鉴定SEC；采用TEM及AnnexinV联合PI双染的方法检测SEC的凋亡。

The diastereo-selective lactones 57～58 was obtained by the polyfluoroalkyl -lactonization of S--2-methyl-4-pentenoic acid under the reaction conditions mentioned above.

以S--2-甲基-4-戊烯酸进行上述内酯化反应，可得到具有立体选择性的产物57a，57b，58a，58b。

Adaptation to seawater in Lactuca indica was mainly caused by strong K+ selective absorption and transport. Furthermore, accumulating soluble sugar and protein were important osmotica in Lactuca indica seedlings and it could be characterized as an indicator of salt tolerance.

海水胁迫下，苦荬菜幼苗维持一定的K+离子选择性吸收是其一定程度上盐适应的重要原因；同时，可溶性糖、可溶性蛋白的积累作用是苦荬菜幼苗盐胁迫下的重要渗透调节物质，可以作为其抗盐性的生理参数。

Through experiments,this paper established the best qualification of leadin phase analysis of a metal mine in Hexi region,Gansu province,including the density of selective solvent ,extraction time etc.

通过实验，建立了甘肃省河西地区某金属矿中铅的物相分析的最佳条件，包括选择性溶剂浓度，浸取时间等。

Results According the MRI characteristric of hypoxic\|ischemic encephalopath sequela:(1)The most common findings were white matter injury in 47 cases:①Periventricular leukomalacia in 23 cases;②Selective cerebral neuronal necrosis of basilar node lentiform nucleus and optic colliculus in 9 case...

结果 根据儿童缺血缺氧性脑病后遗症的MRI影像特点，将其分为：（1）脑白质损伤为主：47 例；①脑室周围脑白质脱髓鞘、软化：23 例；②基底节豆状核、视丘神经元选择性损害：9 例；③胼胝体受损变薄：15 例；（2）脑灰质损害为主：18 例；（3）局部或多处脑软化：9 例；（4）广泛脑损害：5 例。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。