起始的

Mm, 5 μm and a UV detector. Elution was performed at a flow rate of 1 mL/min, with a gradient of methanol-acetonitrile-water starting at 80∶10∶10, increasing linearly to 86∶10∶4 in 35 min, then returning to the initial conditions in 5 min. Elution of phenacyl esters was monitored by absorbance at 254 nm. Pentadecanoic acid was used to be an internal standard.

分析所用色谱柱为ZORBAXSB C18柱，以十七酸作为内标，甲醇-乙腈-水为流动相，采用梯度洗脱(梯度洗脱程序为甲醇-乙腈-水由80∶10∶10在35 min内线性变化到86∶10∶4，然后在5 min内恢复到起始比例，流动相流速为1 mL/min)，通过测定苯乙酰甲酯在254 nm处的吸光度值来测定脂肪酸含量。

Deoxybenzoin(3) was prepareded by using the resorcinol and substituted phenylacetic as starting meterials in microwave-mediated.Then the compound(3) was reacted with acetic anhydride to produce(4).The compound(4) was hydrolyzed to convert compound(5) in the acid-mediated. The compound(5) was reacted with the 1,2-dibromo-ethane and 1,3-dibromo-propane in refluxed condition with acetone as solvent to give(6) or(7),respectively.Lastly,the title compounds were synthesized by refluxing(6) or(7) with 2-methyl-benzimidazole and potassium carbonate in acetone solution.

以取代苯乙酸和间苯二酚为起始原料，用微波辐射法合成脱氧安息香(3)，(3)与乙酸酐缩合生成2-甲基-7-乙酰氧基异黄酮(4)，(4)在酸性条件下水解生成相应的异黄酮(5)，化合物(5)分别与1，2-二溴乙烷和1，3-二溴丙烷反应生成(6)和(7)，化合物(6)和(7)再分别与2-甲基苯并咪唑偶合生成目标化合物。

The separation of 1-(2,6-dichlorophenyl)-2 - indolone and related materials in the synthesis of medical intermediate DC I from 2,6-dichlorophenol and phenylamine was investigated with high performanc e liquid chrom atography under different chromatographic conditions.

应用高效液相色谱方法研究了以2，6-二氯苯酚和苯胺为起始原料合成药物中间体1-(2 ，6-二氯苯基)-2-吲哚酮过程中，DCI及相关物质在不同色谱条件下的分离情况。

The results indicate that most minor codons for these coronaviruses are preferentially used in the initial and terminal region.

结果表明，冠状病毒基因组的稀有密码子倾向于出现在编码起始区和终止区附近。

The stavudine was prepared from 5-methyluridine via six steps in 34% overall yield, in which the key step is the selective acylation of 5-methyluridine by propionyl chloride.

该路线以5-甲基尿苷为起始原料，关键步骤是5-甲基尿苷和丙酰氯的选择性酰化反应，六步反应总收率为34%。

Type I depressor septi muscles(62%) are visible and identifiable, and can be traced to full interdigitation with the orbicularis oris from their origin at the medial crural footplate.

I型降鼻中隔肌（ 62 ％），解剖中可见，可被识别，并发现在其起始部位内侧脚踏板处和同起于此的口轮匝肌完全交错。

The cis-decalin 79 was obtained from 2-methoxy-4-methylphenol (77) via a sequence of reactions involving intermolecular Diels-Alder reaction of masked o-benzoquinone derived from 77 and ethyl vinyl ketone, silyl enol ether formation and Cope rearrangement.

第一部份：以2-甲氧基-4-甲基酚(77)为起始物，经由二乙醯基亚碘苯氧化、分子间Diels-Alder反应、烯醇矽醚的形成及Cope重排反应得到具有十氢萘骨架化合物79。

Polar watch was used to record heart rates at the beginning of test and during exercise. The results of VO2max by the two submaximal tests were compared with that by direct test protocol. Their correlation analysis was carried out simultaneously.

评估：Polar表记录测试前起始时以及测试整个过程中的心率，比较两种台阶测试法和直接测试法测试最大摄氧量结果，并进行相关性分析。

The first subrule in a group of subrules is called the start subrule .

一组子规则中第一个的子规则被称为起始子规则。

However I, because of the overwhelming happiness, have swooned and lost my consciousness.

你起始有些愕然，随即认识了我，我已因过度的欢喜而昏厥了。

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。