查询词典 toluene

The Maoming and Fushun oil shales were treated by 1 benificiation of organic matter with HC1 and HF, 2 extraction with toluene under supercritical state (385℃,15MPa) for converting most of the organic matter into soluble bitumens.

用两种方法研究了茂名和抚顺油页岩的有机质：一是用HCI与HF处理分离有机质后直接进行化学与仪器分析；一是用甲苯在超临界态(385℃，15MPa)下抽提，得到对有机质为75—81w%的沥青，并对沥青进行结构分析。

S-1-phenylethanol was obtained in up to 19%ee in toluene at 0℃.(4)A series of C_2-symmetric chiralβ-amino alcoholsⅣ-5were synthesized in several steps from natural amino acid L-proline,and applied in the asymmetric borane reduction of prochiral ketones.

4以天然L-脯氨酸为起始原料，经过几步转化合成了以萘环为母体的C_2-对称的手性β-氨基醇Ⅳ-5，将其应用于硼烷对前手性酮的不对称还原反应中，同样，我们也观测到温度影(来源：Ac1BC论文网www.abclunwen.com)响产物构型的现象。

Programmed microwave heating was used to desorb toluene from laden activated carbon.

利用微波辐照作为加热手段，采用程序升温的方法对活性炭上吸附的甲苯进行解吸。

The chemicals formaldahyde, toluene and dibutyl phthalate are used in most nail polishes.

大多数指甲油当中都含有化学物质甲醛、甲苯、和邻苯二甲酸二丁酯。

The lanolin in the flocculent deposit was been extracted by solvent of toluene. A high removal rate of COD can been also got by SPAM only, and raised with the concentration of SPAM. The removal rate of COD reached 94% when the concentration of SPAM was 300mg/L, but the floccules were difficult to deposit and filtrate.

絮凝沉淀物中的羊毛脂以溶剂甲苯提取，单独使用絮凝剂SPAM，COD的除去率也很高，且随SPAM的浓度增大而增大，当SPAM浓度达300mg/L时，COD除去率可达94%，但絮凝物沉降困难，也无法过滤。

TOAB (tetra-n-octyl-ammonium bromide) serves as a catalyst initiating the reaction between dodecanethiol and Cux(x-2). When it is absent, nanoparticles were not formed and white floccules were observed in the bottom of toluene phase .

四丁基溴化铵起到催化剂的作用，在它存在的时候，十二烷基硫醇和铜母体的氧化还原反应优先发生。

"A wide range of volatile organic substances are produced during the process of burning paper money. We have found that joss paper contain toxicities including benzene, toluene and xylene."

政府规定的室内，有害挥发性有机物含量要在3 ppm以内，原本归零的侦测器，在我们把金纸点燃之后，数值很快地以惊人的速度向上飙升，达到64.4ppm，超出标准二十多倍。

The paper introduced the process for low-melting of semi-refined wax made with slack wax from by-product in butanone-toluene dewaxing unit.

介绍了应用石蜡发汗工艺以酮苯脱蜡装置副产的蜡膏为原料生产低熔点半精炼石蜡的过程。

The paper introduced the process for low-melting of semi-refined wax made with slack wax from by-product in butanone-toluene dewaxing unit.

目前国内半精炼石蜡产品系列的熔点范围主要为52~62℃，低于52℃的半精炼产品基本属于空白。

Pregnant women exposed to lead, benzene, toluene, xylene, ethylene chloroprene, mercury and mercury compounds, arsenic, cyanide, nitrogen oxides, carbon monoxide, chlorine, carbon disulfide, styrene, ethylene oxide, aniline and formaldehyde and other chemicals prone to pregnancy-induced hypertension syndrome, appears lower extremity edema, blood pressure, urine protein appeared, and there will be a serious headache, vertigo, chest tightness and other symptoms, or even convulsions.

妇女怀孕后接触铅、苯、甲苯、二甲苯、氯丁乙烯、汞和汞的化合物、砷、氰化物、氮氧化物、一氧化碳、氯气、二硫化碳、苯乙烯、环氧乙烷、苯胺和甲醛等化学物质容易患妊娠高血压综合症，出现下肢浮肿、血压增高、尿中出现蛋白，严重时会出现头痛、眼花、胸闷等症状，甚至发生抽搐。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。