醋酸

His friend, who owned a factory that manufactured acetic acid and acetylene , introduced him to a dance band.

他的朋友，一个拥有生产醋酸和乙炔工厂的人，介绍他去了一家乐队。

The effect of chitosan with different molecular weight and deacetylation degree on blood hemostasis was tested.

研究了不同脱乙酰度和不同分子量壳聚糖醋酸溶液的凝血作用。

At present chemistry trades the skin to have two kinds: One kind applies the decolorant, like hydrogen peroxide or hydroquinone; Another kind is uses the phenol or the trichloroacetic acid and so on carries on the corrosive cracking-off.

目前化学换肤有两种：一种是应用脱色剂，如过氧化氢或氢醌；另一种则是使用苯酚或三氯醋酸等进行腐蚀性剥脱。

Crystallized sulfuric salt of SAM was obtained by centrifuging the precipitant at 3000 rpm after adding six times the volume of absolute methanol to the decolorant liquid with a final step of freezing evaporation.

确定了分离纯化SAM的最优条件是：在pH值5.0时，含SAM浓度为3.0 g/L的上柱液，以6 L/h的流速，过装填D152树脂的离子交换柱(φ50 mm×1500 mm)后以去离子水和醋酸洗脱除杂，再用9 L到15 L浓度为50 mmol/L的硫酸以6 L/h的流速洗脱，可以分离得到纯度较高的SAM粗品。

With the densimeter, the reliability of it was confirmed with literature data.

该装置主体为厚壁毛细玻璃管，可耐醋酸腐蚀并可承受最高10.0MPa的压力和573.15K的工作温度。

Triphosgene dissolved in dioxane, the hydroxylamine hydrochloride dissolved in potassium acetate solution.

三光气溶解在二氧六环中，盐酸羟胺溶解在醋酸钾溶液中。

Replaces the carbon dioxide with the acetic acid to carry on the disproportionation,The production rate and the purity have improved.

用醋酸代替二氧化碳进行歧化，产率和纯度均有所提高。

The gradient elution of methanol in ammonium acetate buffer allowed elution of all the amines in less than 30 min.

梯度洗脱甲醇在铵醋酸缓冲区允许洗脱所有的胺在更少超过30分钟。

One aspect of activation of heavy metal elements during the course of acid rain eluviation is probably determined by the ability of the acid buffer capacity of soil and the other more important aspect is probably related with their existing forms in the soil.

通用型土壤活性组分提取剂试制结果表明，用醋酸铵＋DTPA＋对苯二酚混合提取剂能有效提取土壤中的活性组分，对评价土壤重金属污染的生态效应具有积极的作用。

It was showed that the adhesive strength of the PVAc in solution was larger than that in emulsion.

结果表明，聚醋酸乙烯醋浓度的增加，在乳液中不如在溶液中对粘接强度的增进作用来得大。

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。