The programmer forms the heart of the process chromatograph.程序控制器是色谱仪的关键部件.The technique is known as adsorption chromatograph.这种分析技术称为吸附色谱.Figure B shows a scheme of a mass spectrometer coupled to a gas chromatograph.B是气...
Foreboding mingled with his excitement.他在兴奋的同时又夹杂着一种不祥的预感。Prisons like Strangeways, built more than 100 years ago, were intended to look grim and foreboding places.诸如斯特兰奇韦斯监狱之类建于 100 多年前的监狱故意营造出一种阴森、不祥的气氛。I felt a gloomy...
I was impolite and I do beg your pardon.我失礼了，真对不起。It is impolite to ask too many questions.提出过多的问题是不礼貌的。Don't stare at me— it's impolite!别盯着我看——这是不礼貌的！...