盐酸的

Stable Vitamin K 3 is synthesized by addition reaction of raw materials of niacinamide, chlorhydric acid and menadione sodium bisulfite at 25℃.

以烟酰胺、盐酸为原料，在 2 5℃反应得烟酰胺盐酸盐溶液，而后与亚硫酸氢钠甲萘醌发生加成反应，反应的物料配比为：n ∶ n ∶ n =1∶1.2 ∶1.2 5 ，得到稳定的复合维生素K3 ，收率 95 %。

Activation with dilute chloric acid or sulfuric acid solution was adopted as pretreatment of traditional citric gold plating .

传统的柠檬酸盐镀金工艺前处理采用稀盐酸或稀硫酸活化，活化液可能被带入镀金溶液，造成SO2-4、Cl-积累，严重影响柠檬酸镀金溶液的稳定性和镀层质量。

By studying the influences of chromogenic time, dosage of DAM and hydrochloric acid, the optimum chromogenic conditions were obtained.

通过研究显色时间、DAM及盐酸用量、共存离子等对吸光度的影响，得出适宜的显色条件。

Yinao Jieyu Prescription and fluoxetine can increase the expression of bFGF and decrease the level of GFAP in the area of hippocampus CA3 and cingulated cortex of model rats.

颐脑解郁方、盐酸氟西汀能增加脑出血后抑郁模型大鼠海马CA3区、扣带皮质bFGF的表达，减少海马CA3区、扣带皮质GFAP的表达。

Objective To compare the irradiation protective and inter synergestic effects of E838,WR 2721, Rubia cordifolia , cystamine hydrochloride and ethinyl estradiol on radiation and combined radiation burn injury.

目的 比较研究E838、WR 2 72 1、茜草、盐酸胱胺和炔雌醇等 5种辐射防护药对放射损伤和放烧复合伤的防治作用及其相互间的协同作用。

Seven 1-phenyl-(4-pyridinyl)acetylene derivatives were conveniently synthesized in this paper using corresponding styrylpyridines as starting materials by bromination, rearrangement and debromination.

本文采用简单易行的方法从苯乙烯基吡啶类衍生物通过溴化、重排和脱溴化反应合成了7种苯乙炔基吡啶类单体，研究了它们在1mol/L盐酸水溶液中的光环加成反应。

Centrophenoxine combined with point thread embedding protects the nerve cells in the dentale gyrus area of the hippocampus better and improves the learning and memory of the VD model rats more effectively.

在2006年3～8月采用药物和埋线结合的方法，用盐酸甲氯芬酯联合穴位埋线治疗VD大鼠，观察该方法对VD大鼠海马神经细胞及学习记忆的影响，以期为中西医结合治疗VD提供实验依据。

The components of the hydrochloric acid and the fire_retardant - an organic diacid in the waste water produced by production of the fire_retardant were analysed rapidly by acid base potentiometer.

采用酸碱电位滴定法快速简便地测定了阻燃剂生产中产生的含有盐酸和阻燃剂———一种有机二元酸的含量。

Leuco crystal violet lactone was prepared by heating the mixture of dimethylaniline, p- dimethylaminobenzaldehyde and m- dimethylaminobenzoic acid at 60 ℃ for 5 hours in presence of hydrochioric acid and unea and in the nitrogen atmosphere with 72% yield of LCVL.

等摩尔比的N，N-二甲基苯胺和对二甲氨基苯甲醛在盐酸和脲的存在及氮气保护下，80℃反应0.5h，加入间二甲氨基苯甲酸于90℃反应5h。将反应混合物中和，抽滤，得到无色结晶紫内酯，产率为72%。

Leuco crystal violet lactone was prepared by heating the mixture of dimethylaniline, p-dimethylaminobenzaldehyde and m-dimethylaminobenzoic acid at 60℃ for 5 hours in presence of hydrochloric acid and urea and in the nitrogen atmosphere with 72%yield of LCVL.

等摩尔比的N，N-二甲基苯胺和对二甲氨基苯甲醛在盐酸和脲的存在及氮气保护下，80℃反应0.5h，加入间二甲氨基苯甲酸于90℃反应5h。将反应混合物中和，抽滤，得到无色结晶紫内酯，产率为72%。

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。