At sufficiently high temperatures and alkalinity, fatty esters may be hydrolyzed to produce soaps.在足够的温度和碱度的情况下, 脂护酯可能被水解产生皂类.Incorporating organic material into chalky soils will reduce the alkalinity.在白垩质土壤中添加有机物可降低其碱性...
氢是锌和硫酸反应的生成物.Hydrogen is a product of the reaction between zinc and sulphuric acid.较高的工作电压引起碳生成物的分离.The higher operating voltage causes a breakdown of carbon products.根据不同的反应条件,深入研究并建立及推广了生成物浓度数学模型.By experiment examinat...
Luckily, I'd noticed where you left the car.幸运的是我注意到了你把车停在哪里.Luckily for me, he spoke very good English.算我幸运，他英语讲得很好。Luckily, we both love football.幸好我们俩都爱足球。...
Practice makes perfect.熟能生巧In practice, workers do not work to satisfy their needs.事实上，工人工作并不是为了满足本身的需要。Knowledge begins with practice.知识始于实践。All members of the association adhere to a strict code of practice...协会的所有成员都遵...