The synthesis of ν - curcumene was described. The experiment affirmed that ν - curcumene can aromatize to α - curcumene readily at room temperature.用金属锂 - 液氨一步还原法合成γ姜黄烯.实验证实γ姜黄烯极不稳定,室温下极易芳香化转变成α姜黄烯....
And on your left, you have Tyrannosaurus Rex, a carnivore from the Jurassic period.在您的左边, 您看到的是暴龙, 一种来自侏罗纪的肉食动物.Tyrannosaurus Rex was a large carnivore; insectivorous plants are considered carnivores.暴龙是一种大型的食肉动物; 食虫植物被看...
His poor performance may be attributed to lack of mo-tivation rather than to reading difficulties.他糟糕的表现也许要归因于缺乏积极性，而不是阅读障碍。Such a dichotomy cannot simply be attributed to coincidence.这样一种分歧不能简单归之于巧合.Another meaning can ...
Also , try to avoid abbreviations. If you must abbreviate, use standard abbreviations.避免用缩略语, 如果必须, 要用标准缩略语.We shall abbreviate'directed graph'to digraph.我们将把“有方向的图”简称为方向图.She had lost the power to abbreviate t...