Resonance theory says that benzene can be represented by two contributors.

The benzene ring is also seen in other compounds.

苯环在其他化合物中也可以看见.

The benzene vaporized and formed a huge cloud of gas.

苯蒸发了，形成了一大团气体。

Pay attention to fire prevention when recirculating and eluting with petroleum benzin.

用石油醚回流洗脱时应注意防火.

Example 2 : Stage of some factory hair-oil fills outfit dissolvent benzine for one car tank car.

事例 2: 某厂发油台为一汽车油槽车充装溶剂汽油.

The aviation fuel that airline place uses basically has aviation benzine and aviation kerosene two kinds.

航空公司所使用的航空燃料主要有航空汽油和航空煤油两类.

Never use volatile fluid such as lacquer thinner , benzine, etc. when cleaning the unit.

切勿使用香蕉水 、 汽油等挥发性液体清洁计算器.

A method of fourth derivative UV spectrophotometric determination of and benzoate in soft beverage was studied.

利用四阶导数光谱法从而不经任何分离手段测定了软饮料中阿斯巴甜和苯甲酸的含量.

HPLC method for the determination of rizatriptan benzoate and its related substances was established.

建立了HPLC法测定苯甲酸利扎曲普坦含量及有关物质.

The antibacterial activity of sesamin was remarkable compared sodium benzoate at the same concentration.

芝麻素的抗菌作用优于同浓度的苯甲酸钠.

Objective To explore the effect of estradiol benzoate on traumatic brain injury ( TBI ).

目的探讨雌激素在颅脑创伤中的作用.

The mechanism of thermal decomposition for calcium benzoate was studied by using TG, DTA, and IR.

用DTA和TG研究了它在氮气气氛中的热分解过程, 并用红外光谱表徵了热分解产物.

However, it was less stable to negative ions, reluctant, vitamin C, sodium benzoate, potassium sorbate, etc.

但在含氧酸根阴离子 、 还原剂 、 维生素C 、 苯甲酸钠 、 山梨酸钾等添加剂中稳定性较差.

The principle and condition of synthesis Isopropyl benzoate with catalyst of ferric chloride was researched.

探讨了氯化铁催化合成苯甲酸异丙酯的反应条件及机理.

Synthesis ofp-nitro-ethyl benzoate with benzene sulfonic acid as catalyst is reported.

以苯磺酸为催化剂,实现了对硝基苯甲酸与乙醇反应合成对硝基苯甲酸乙酯.

A method was developed to determine residue of emamectin benzoate in vegetables.

建立了一种柱前衍生–高效液相色谱测定蔬菜中甲氨基阿维菌素残留量的方法.

Objective : To study the psychological effect of long-term caffeine sodium benzoate use.

目的: 探讨 长期 烫吸安钠咖对心理状态的影响.

The products were analyzed simultaneously using ethyl benzoate ( EB ) as internal standard.

以苯甲酸乙 酯 为内标物,一次性同时分析了塔釜产物中各组分含量.

The crude, wet benzoate ( 118 grams ) was disslolved with reflux in 1,400 ml methanol.

将粗制 、 湿的苯甲酸酯 ( 118克 ) 回流着溶于140毫升甲醇中.

The crude, wet benzoate ( 118 grams ) was dissolved with reflux in 1 , 400 ml methanol.

将粗制 、 湿的苯甲酸酯 ( 118克 ) 回流着溶于1400毫升甲醇中.

Methods: Benzocaine was synthesized from p-nitrobenzoic acid via two steps through esterifying and reduction.

方法: 以对硝基苯甲酸为起始原料,经酯化,还原两步合成苯佐卡因.