The imidazoline was synthesized from black acid liquid.以酸性黑油为原料合成咪唑啉.Then the imidazoline boric acid ester was synthesized when the intermediate reacts boric acid.采用两步法合成月桂酸味唑啉硼酸酯....
They were pressing on eastwards towards the city's small airfield.他们继续向东朝该市的小机场推进。The current sets strongly eastwards.急流迅猛东去.From Bristol we drove eastwards to London.我们从布利斯托尔向东开车到伦敦....
我放弃了写叙事诗,而写了这个小故事.I gave up my epic and wrote this little tale instead.正如经常发生的那样，这个小故事在结尾处出现了转折。As so often happens, this little story has a twist in the tail.传奇中的一些小故事成为英雄通向不朽境界的最可靠的护照.The incidents of the legend become...
硫化染料因其有毒而受到注意.The sulfur dyes are noted for their toxic properties.他认为碳最初和硫酸钙反应生成硫化钙.He postulated that the carbon reacts initially with the sulfate to form calc ium sulfide.第三个例子是前章提到的硫化亚铁.A third example is the ferrous...