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....
Every normal trainer is duty - bound to improve the focalization and actual effect of the normal education.提高德育的针对性和实效性,是每个德育工作者义不容辞的责任.The teaching, of political theory should stress Four qualities quality of ideology, ...
他快步来到控制台跟前，减小了油门。He stepped swiftly to the controls to throttle back the engine.上个月，通货膨胀的压力继续减小。Inflationary pressures continued to slacken last month.活塞上涂了一层石墨以减小摩擦力。The pistons are graphite-coated to reduce friction....