英语释义

1. a flammable liquid heterocyclic ether C4H8O that is derived from furan and used as a solvent and as an intermediate in organic synthesis

片语

tetrahydrofuran polymer四氢呋喃聚合物

tetrahydrofuran extracts四氢呋喃抽提物

Tetrahydrofuran min四氢呋喃分

TETRAHYDROFURAN PRS四氢呋喃

substituted tetrahydrofuran取代四氢呋喃

cleavage tetrahydrofuran四氢呋喃开环

TETRAHYDROFURAN SPECTROSCOPYCAS四氢呋喃

Tetrahydrofuran Solution四氢呋喃

英汉例句

• in mixture solvent of tetrahydrofuran and (water), methyl pheophorbide-a existed as single molecule and bound bsa with a molar ratio of 1∶1.

  而在四氢呋喃与水的混合溶液中脱镁叶绿酸a甲酯以单分子状存在，其与bsa的结合摩尔比为1∶1。

• to analyze production and consumption situation of tetrahydrofuran at home and abroad. to assess its demand and potential development of tetrahydrofuran in china.

  分析国内外四氢呋喃的生产消费情况，对未来的需求进行预测，并对我国发展潜力进行了分析。

• polyether glycols and alcohols derived from 3,4-epoxy-1-butene, tetrahydrofuran and initiator.

  由3，4-环氧-1-丁烯，四氢呋喃及一种引发剂合成的聚醚二醇和醇。

• using tea co2 laser as excitation source, we have studied the processes of multiphoton dissociation of propylene oxide (po), tetrahydrofuran (thf)and diallyl ether (dae).

  本文用tea co_2激光器研究了1，2-环氧丙烷（po）、四氢呋喃（thf）和烯丙基醚（dae）等含c—c—c键有机物的多光子解离过程；

• li2o-b2o3 composite gels were successfully prepared from tri-n-butyl borate and lithium methoxide dissolved in methanol and tetrahydrofuran via sol-gel technique.

  以硼酸三正丁酯、甲醇锂为主要原料，甲醇和四氢呋喃为溶剂，利用溶胶-凝胶法通过优化工艺制备了掺锂硼酸盐凝胶。

• tetrahydrofuran is highly flammable and may contribute to the release of toxic gases and vapors during a fire, according to the federal occupational safety and health administration.

  美国职业安全与保健管理局介绍说，四氢呋喃是一种易燃物质，发生火灾时它有可能导致一些有毒气体挥发。

• coal pitch is extracted with tetrahydrofuran to obtain tetrahydrofuran soluble(thfs)and tetrahydrofuran insoluble(thfi).

  煤沥青用四氢呋喃萃取分离得到四氢呋喃可溶物（thfs）和四氢呋喃不溶物（thfi）。

• the target compounds were extracted with polyvinyl chloride materials dissolved in tetrahydrofuran or polyethylene materials dissolved in hot toluene.

  采用四氢呋喃溶解聚氯乙烯、热甲苯溶解聚乙烯材料以提取样品中的目标化合物；

• the dynamic adsorption model that described the characteristics of small amount of water from tetrahydrofuran on 4a molecular sieve was developed.

  建立了合适的吸附动态模型，用于分析四氢呋喃中的微量水在4a分子筛上动态吸附特性。

• a heterogeneous catalytic system for methylolation of alkali lignin was constituted of tetrahydrofuran containing purified alkali lignin and solid alkali catalyst with special structure .

  将合成出的具有特定结构的复合型固体堿催化剂，与溶有纯化堿木素的四氢呋喃建立起多相催化体系，对堿木素进行了多相催化羟甲基化作用。

• when dissolved in tetrahydrofuran along with aruthenium catalyst at room temperature, the compound releases hydrogen in aslittle as 15 minutes.

  这种化合物在室温条件下可溶解在四氢呋喃和钌催化剂中，仅需15分钟就可以释放出氢气。

• derivatives of 2,2,4-trisubstiotuted tetrahydrofuran as anti fungal agents.

  作为抗真菌剂的2，2，4-三取代的四氢呋喃衍生物。

• copolymerization products were fractionated by successive solvents extraction with boiling methyl ethyl ketone (mek) and boiling tetrahydrofuran (thf).

  共聚产物用沸丁酮（mek）、沸四氢呋喃（thf）进行连续抽提。

• the effect of factors to the growth of aeromonas thf01 which degraded tetrahydrofuran was studied by liquid culture.

  以降解四氢呋喃的气单胞菌thf01为对象，采用液体培养研究了各种理化因素对其生长的影响。

• tetrahydrofuran was synthesised by dehydration of 1,4-butanediol using p-toluene sulphonic acid supported on active carbon as catalyst.

  以活性炭负载对甲苯磺酸作催化剂，对1，4-丁二醇脱水剂制备四氢呋喃的反应进行研究。

• the synthesis of polyoxytetramethylene glycol(ptmg)from tetrahydrofuran was investigated, using fuming sulfuric acid as catalyst.

  本工作以四氢呋喃为原料、发烟硫酸为催化剂合成了聚四甲撑二醇（ptmg）。

• the results showed that tetrahydrofuran was a better cosolvent and the waste edible oils containing abundant free fatty acids was liable to form miscible system.

  结果表明，四氢呋喃是良好的共溶剂，游离脂肪酸含量高的废食用油有利于共溶体系的形成。

• chloroform - tetrahydrofuran - water(500: 500: 8) was used as mobile phase for the gradient elution of other strongly retained substances.

  继用氯仿-四氢呋喃-水（500：500：8）为流动相，梯度洗脱其他强保留组分。