乙醚

This compact polythiophene film showed different responses to anions with different sizes dimension when it was electrochemically oxidized.

在噻吩/三氟化硼乙醚溶液中于低电位下得到的聚噻吩薄膜还具有非常致密的结构，使掺杂离子在聚合物中的输运受到了限制。

The microstructure of polythiophene film showed different responses to anions with different sizes dimension when it was electrochemically oxidized.

在噻吩/三氟化硼乙醚溶液中于低电位下得到的聚噻吩薄膜还具有非常致密的结构，使掺杂离子在聚合物中的输运受到了限制。

Taking the rates of ethanal and ether extracts,as well as essential oil as indexes,qualtities of Bunge pricklyash from 10 major production areas were evaluated by comprehensive multi-index comparison method.

以醇溶抽提物、不挥发性乙醚抽提物和挥发油含量为指标，应用多指标综合排序方法对全国10个主产地花椒品质优劣进行排序；应用因子分析方法，对影响花椒品质的环境因子进行分析。

Taking the rates of ethanal and ether extracts ,as well as essential oil as indexes,qualtities of Bunge pricklyash from 10 major production areas were evaluated by comprehensive multiindex comparison method.

以醇溶抽提物、不挥发性乙醚抽提物和挥发油含量为指标，应用多指标综合排序方法对全国10个主产地花椒品质优劣进行排序；应用因子分析方法，对影响花椒品质的环境因子进行分析。

Using butanediol as initiator, boron-trifluoride etherate as catalyst, 3-azidomethyl-3-methyloxetane homopolymer was synthesized by the cationic polymerization of 3-azidomethyl-3-methyloxetane which was carried out in dichlorometane.

以1，4-丁二醇为引发剂，以三氟化硼乙醚络合物为催化剂，以3-叠氮甲基－3-甲基氧丁环为单体，以CH2Cl2为溶剂，按阳离子开环聚合机理，合成了含能粘合剂3-叠氮甲基－3-甲基氧丁环均聚物。

Using pentaerythritol as initiator, boron trifluoride diethyl etherate as catalyst.dichloroethane as dispersion agent, the chloride polyether polyol is synthesized based on the mechanism of cationic ring-opening polymerization of epiclilnrohyclrin.The azide polyether polyol is synthesized, in DMF through A and sodium azide, and the non-reported azide energetic curing agent is synthesized through the adduction of B and IIDI.

以季戊四醇为起始剂，三氟化硼乙醚为催化剂，1，2—二氯乙烷为分散剂，环氧氯丙烷经阳离子开环聚合反应制成氯化聚醚多元醇，A在N，N—二甲基甲酰胺中与叠氮化钠反应制得叠氮聚醚多元醇，B与六亚甲基二异氰酸酯加成反应制得未见文献报道的叠氮固化剂。

Crude fat of the sample powder was determined gravimetrically after extraction with diethyl ether.

用乙醚从粉末中提取出粗脂肪，这些粗脂肪用比重法测定。

The steps are as the following:1、Preparing the cerebrospinal fluid one hour before the experiment,take some of them for cryopreservation;2、Without paralyse,cuting down the rat head quickly and dislodge the hippocamp part which is used in the experment in freezing liquid,and trim the hippocamp distrct.3、Fixing the hippocamp tissue on the vibratome,to cut down a brain slice with 300μm,use the haustorial tube to move the slice to the preincubate dish,cultivanting it for one hour.Then move it to the record incubation chamfer.4、Preparing the glass micloelectrode and fill it with NaCl,the corcentation is 3mol/L.5、adjusting the recorder,after cultivate the brain slice in the incubation chamfer for 2 hours,the expermentize can be gone on.6、In order to ensure the accurate of the experimental result,use only one medicine concentration for one brain slice in every experiment.

本实验研究方法是：1、实验前1小时配制好所需脑脊液并充以95% O2和5% CO2的混合气，取小部分冷冻保存；2、在乙醚麻醉下，快速断头并在冷冻液里取出包含海马的大脑部位，修整出所需海马区；3、将海马组织固定于振动切片机上切出300μm厚的海马脑片，用广口吸管转移至预孵育皿培养一小时，后再转移到记录用孵育槽内；4、拉制好玻璃微电极，并充以3mol/L的NaCl；5、调试好记录仪器，将脑片在孵育槽内培养2小时后进行实验；6、为了保证实验结果的准确性，每一块脑薄片只进行一个浓度的药品实验。

The process was methanolysis α-imino ether acid hydrogen chloride salt from methyl-cyanide.

研究了以乙腈为原料经α-亚氨基乙醚盐酸盐醇解制备原醋酸二乙酯的工艺方法，对醇解的投料比、反应时间及中和pH值等工艺条件进行了研究，得出较优惠的工艺条件。

Jasminum nudiflorum Lindl.1. The fatty acid compositions in Jasminum nudiflorum Lindl.

采用乙醚提取迎春花脂肪酸，再经过甲酯化后，通过气相色谱/质谱联用技术分析脂肪酸的组成。

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。