Lead-acid and alkaline bettery must not be installed in the same battery room .
酸性蓄电池于碱性蓄电池不应装在同一蓄电池室内。
With p-toluene sulfonic acid used as catalyst and chlorobenzene as organic solvent, the reaction kinetics between phenol and acetal have been studied at room temperature.
本文研究了以对甲苯磺酸为催化剂，氯苯为溶剂，室温附近的条件下，苯酚及对叔丁基酚与甲缩醛反应的动力学。
Therefore, the acid synthesis should be performed at room temperature.
因此，酸性合成宜采用室温条件。
In order to obtain rust, brown, gun-black and ancient green films on brass at room temperature, the chemical coloring process on brass in acid solution was studied.
为了在黄铜基材上室温下获得铁锈色、棕色、枪黑色、仿古绿色膜层，研究了黄铜酸性化学着色工艺。
The precipitated silica is prepared by using liquid sodium silicate and sulfuric acid as raw materials at room temperature and modification agent TMCS is used for its surface modification.
以液体硅酸钠和硫酸为原料，在室温下反应合成沉淀白炭黑，并用三甲基氯硅烷（TMCS）对其进行表面改性。
Methods:Samples were dried at room temperature after coating films, followed by freezing, hardening. 4% acetic acid was used to extract metals in treated samples.
方法：试样经涂膜使用温度下干燥、冷冻硬化粉碎，4%乙酸浸泡处理，石墨炉原子吸收测定胶粘剂可溶性钡、镉、铬、铅含量。
The room was impregnated with that special leathery acid smell peculiar to the mountaineers.
特别是镶在房间勐特有的酸臭味登山。
Based on the principle of reaction crystallization, a new technology of direct crystallization of boric acid from the brine of salt lake by acidification at room temperature.
利用反应结晶原理，研究了室温酸化盐湖卤水直接结晶硼酸的新工艺。
It is colorless transparent acid water solution at room temperature, can in general use, mainly because of cement used to remove granite formation of surface water wet paste spot.
本品为无色透明的酸性水溶液，能在一般室温下使用，主要用于清除花岗石因水泥湿贴形成的表面水斑。
The results show that better extraction effect can be got by using 0.5-1 % citric acid solution for extraction solution and 95 % alcohol for elution solution at normal room temperature.
结果表明：在常温下以0.5~1%的柠檬酸为提取剂，95%的乙醇为洗脱剂，能达到很好的提取效果。
In the hydrothermal reaction system of acid-treated stellerite-NaOH-NaAlO2-H2O, the ageing of the reaction mixture in room temperature is the key for the preparation of pure X-zeolite.
酸处理红辉沸石-氢氧化钠-铝酸钠-水的水热反应体系中，反应混合物的室温陈化是制备纯x型沸石的关键。
Peroxyacetic acid was prepared from hydrogen peroxide and acetic acid in the presence of sulfuric acid at room temperature.
利用双氧水和乙酸在硫酸催化室温下制备了过氧乙酸。
The terahertz (THz) spectra of nicotinic acid, nicotinamide and nicotine were studied at room temperature. The time-domain THz spectra were measured.
研究了室温条件下结构相似的烟酸和烟酰胺以及烟碱的太赫兹光谱。
70% sulfuric acid at room temperature and a short period of time can only dissolve the surface layer of fiber.
70%的硫酸在室温下和较短的时间内只能溶解纤维表面一层。
JS-606 acid silicone glass sealant is single component, acetic acid type It easily solidified at room temperature and convenient to use and has solidification rate.
JS- 606酸性硅酮玻璃胶系单组份、醋酸型、室温固化的硅酮密封胶，使用方便，固化速度快。
JS-607 acid silicone glass sealant is single component, acetic acid type It easily solidified at room temperature and convenient to use and has solidification rate.
JS- 607酸性硅酮玻璃胶系单组份、醋酸型、室温固化的硅酮密封胶，使用方便，固化速度快。
Under normal pressure and room temperature, urea humate is manufactured by coating urea with coal humus acid, with water and a few additives as its binder, also its agricultural effect is examined.
介绍用水和少量添加剂作介质，在常温常压下，煤炭腐植酸与尿素直接进行络合反应包裹生产腐植酸尿素的工艺及特点，并对其农业应用效果进行了讨论。
Room temperature-phosphorescence of indole-3-butyric acid(IBA) in micellar system of non-ionic surfactant Tween-40 was studied in detail and used as a sensitive method for determination of IBA.
对吲哚-3-丁酸在非离子表面活性剂吐温-40的胶束体系中产生的燐光反应作了详细研究并应用，基于此而建立的灵敏方法测定吲哚-3-丁酸。
Room temperature-phosphorescence of indole-3-butyric acid(IBA) in micellar system of non-ionic surfactant Tween-40 was studied in detail and used as a sensitive method for determination of IBA.
对吲哚-3-丁酸在非离子表面活性剂吐温-40的胶束体系中产生的燐光反应作了详细研究并应用，基于此而建立的灵敏方法测定吲哚-3-丁酸。
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