甲苯

The main components of the waste gas from the industry of plastic tan are benzene,toluene,dimethylbenzene,xylene and acet.

塑料制革业生产过程中产生的主要污染物是苯、甲苯、二甲苯和丙酮等，由于强度不大，在一般大气扩散条件下可以满足环境质量标准的要求，但仍会对环境产生一定影响，必须引起重视。

On sand packs consisting of 100 cm~3 quartz of particle size 0.3—0.6 mm, 2 mL kerosene, 1 mL produced water and several drops of isopropyl alcohol, the formulation of LFAR sand consolidation fluid is studied on the basis of the experimental data of compression strength and permeability of the consolidated sand packs and established as follows: 5.0 g LFAR; 0.5 g paratoluene sulfonic acid as curing agent; 5.0 g butyl acet...

在由100cm3粒径0.3～0.6mm的石英砂、2mL煤油、1mL油田污水、几滴异丙醇组成的固砂模型上，根据固结砂的抗压强度和渗透率筛选出了糠醇聚合物固砂剂各组分的用量：糠醇聚合物5g，固化剂对甲苯磺酸0.5g，稀释剂醋酸丁酯5g，后固化剂NaCl+HCl溶液100mL，预冲洗液80mL，后冲洗液80mL。

PBMC treated with inhibitor N-tosyl phenylalanine chlormethyl ketone, Astragalus can increase the activity of NF-κ B and the concentration of IL-8 in patients with PNS. it also increases the the activity of NF-κ B in normal children , but can ' t affected the concentration of IL-8 in normal children. ConclusionIn patients with PNS , the activity of NF-κ B was up-regulated and the level of IL-8 was significantly elevated.

结果肾病患儿 NF-κ B 活性及 IL-8含量增高，2者呈正相关； IL-1β刺激后，黄芪降低肾病患儿 NF-κ B 活性及 IL-8含量、降低正常儿童 NF-κ B 活性而不影响 IL-8含量；用对甲苯磺酰-L-苯丙氨酸氯甲基甲酮抑制后，黄芪可提高肾病患儿 NF-κ B 活性及 IL-8含量、提高正常儿童 NF-κ B 活性；而不影响 IL-8含量。

To 10 g of the substance being examined, coarsely powdered, add 100 ml of acetone R and allow to stand for 20 min. Add 1 ml of a solution containing 1.8 μg/ml of carbophenothion R in toluene R. Homogenise using a high-speed blender for 3 min. Filter and wash the filter cake with two quantities, each of 25 ml, of acetone R.

称取10g的检测样品，粉碎成粗粉，加入丙酮100ml，静止20min，加入1.8ug/ml的三硫磷-甲苯混合溶液1ml，高速搅拌3分钟，过滤，用丙酮洗涤滤纸两次，每次25ml。

"Chemical explosive s are of two types: detonating explosive s (e.g., TNT, dynamite) have extremely rapid decomposition and development of high pressure; deflagrating explosive s (e.g., black powder, smokeless powder) merely burn quickly and produce relatively low pressure."

化学爆炸物有两类基本的炸药，一为爆轰炸药(如三硝基甲苯〔TNT〕和黄色炸药)，能极快分解，造成高压。二为爆燃炸药能很快燃烧，但产生的压力较低。

"Chemical explosives are of two types: detonating explosives (e.g., TNT, dynamite) have extremely rapid decomposition and development of high pressure; deflagrating explosives (e.g., black powder, smokeless powder) merely burn quickly and produce relatively low pressure."

化学爆炸物有两类基本的炸药，一为爆轰炸药(如三硝基甲苯〔TNT〕和黄色炸药)，能极快分解，造成高压。二为爆燃炸药能很快燃烧，但产生的压力较低。

The selected process consists of several steps as follows. Firstly, ammonifying the oily mixture of PXA pyrolysis by ammonia or aqueous ammonia, then adding the organic solvent to extra

实验结果表明，合适的分离提纯工艺为：先将裂解产物用氨水氨化、有机溶剂萃取，然后用硫酸酸化11-CUA铵盐水溶液、再将粗品11-CUA于合适介质中结晶，得到高纯度11-CUA晶体；优化工艺条件为：氨化pH值8.0～10.0、温度25-35℃，甲苯为萃取剂，酸化pH值1.5～2.0、温度55-60℃，环己烷为结晶介质，粗品11-CUA在环己烷中溶解温度50～55℃、与环己烷初始质量比4：100、结晶前沉降分层时间10min、结晶温度20℃。

In addition, other chlorinated benzenes can be degraded with or without toluenes being present.

另外，在甲苯存在或不存在情况下，其它的氯化苯也可被降解。

In chapter four, a real continuous-flow process for synthesis of alkyl bromides or cyanides was demonstrated by nucleophilic substitution reactions of tosylates with bromide and/or cyanide conducted in ionic liquid.

第四章：以离子液体中对甲苯磺酸酯的亲核取代反应为例，探讨了一种新型的&反应原料不断加入而反应产物可以得到即时分离&的连续化反应流程。

Apple polyphenol extracts had stronger deoxidizing capacity, antioxidant activity and scavenging effects on superoxide an...

苹果多酚提取物具有较强的还原能力和抗氧化活性，对脂质过氧化产生的超氧阴离子自由基具有较强的抑制作用，且在试验浓度范围内其最大抑制率优于同浓度二丁基羟基甲苯的效果。

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。