介绍八水氢氧化钡制取高纯碳酸钡的工艺, 产品质量及用户使用结果.Introducing the producing process of High Purity Barium CarbonateBarium Hydroxide, product quality and using results.以八水氢氧化钡和尿素为原料, 采用均相沉淀法制备了碳酸钡粉体.Using barium hydroxide octahydrate and u...
甲板上所有的装置、窗户、舱口盖和门都已经关牢了。All deck fittings, windows, hatches and doors had been fastened.复杂而不实用的装置a Heath Robinson contraption遇到有人盗车时使汽车引擎发动不了的装置a device to immobilize the car engine in case of theft...
本文报道呕恶丙嗪擦剂含量测定方法学的研究.Study on assay method of oxaprozin in its liniment was reported.目的制备痤疮露号擦剂,用于治疗各型痤疮.OBJECTIVE To prepare acne I ablution for treating all kinds of acnes.目的: 评价风痛灵擦剂外用的安全性.Objective : To estimate the ...