A simple method for preparing m -cresol from m -toluidine via diazonium salt at room temperature using copper salt as a catalyst is proposed.
提出一种以间甲苯胺为原料,在铜盐催化室温条件下,经重氮盐制备间甲苯酚的简单方法。
M. Sohail, from Loughborough University in the UK, is making a toilet that will "recover water and salt from feces and urine."
来自于英国拉夫堡大学的AndrewCotton,正在制作一种将会从排泄物中回收水和盐的便桶。
Seasoning powder: Natural Seafood Flouring powder, salt, Sugar, M. s. G. Spices.
调味粉包:天然海鲜调味粉、食盐、香辛料、味精、糖。
Metal m can be retrieved from its chlorine, e. g. by molten salt electrolysis, and recycled to the first step of the process.
金属M例如可通过熔盐电解从其氯中回收,并循环到该工艺的第一步。
In fact, the amount of lysine adsorbed at the highest added salt concentration (0.1 m) was only 4 mol % of that adsorbed with no added salt.
事实上,这一数额赖氨酸吸附在最高盐浓度增加(0.1米)的摩尔只有4 %的吸附没有增加盐。
Based on two-year field experimental measurements in a typical area and a soil salt balance model, the average soil salt content changes of 1.2 m depth were simulated and validated.
作者选择该区代表性地点,通过田间观测与建立模型相结合的方法,对现有种植条件下的水田盐分动态变化进行了模拟和检验。
The malfunction occurred in an FAA facility in Salt Lake City around 5 a. m. EST, when a card inside a router that processes flight plans and weather information started to fail.
盐湖城的一处FAA设施在美东时间上午5时左右发生故障,当时处理航班计划和天气信息的一台路由器内部的卡片开始出现故障。
Maurice Greene opened the door to his balcony each day around 9 a. m., stepped outside, looked at the glittering sea and took a deep breath of salt air.
莫里斯·格林每天上午会在大约9点钟打开阳台的门,站在阳台上眺望波光粼粼的海面,深深吸一口略带咸味的空气。
Maurice Greene opened the door to his balcony each day around 9 a. m., stepped outside, looked at the glittering sea and took a deep breath of salt air.
莫里斯·格林每天上午会在大约9点钟打开阳台的门,站在阳台上眺望波光粼粼的海面,深深吸一口略带咸味的空气。
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