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.The synthesis of ν - curcumene was described. The experiment affirmed that ν - curcumene can aromatize to α - curcumene readily at room temperature....
机枪在黑暗中吐出一道凶厉的白光,活象一支喷火的乙炔吹管.In the darkness, the machine gun spat a vindictive white light like an acetylene torch.游戏介绍: 你见过会喷火的辣椒 吗 ?The flame will on the game: Have you ever seen Pepper?像喷火的怪兽轰鸣着穿过夜阴森交错的白牙.Like a gryph...
All plants [ flora ] need water and light.一切 草木 都需要水和阳光.A vacant lot or a bombsite can, to the amateur naturalist, produce an extraordinary variety of flora and fauna.对于业余博物学者来说，在一片空地上或被炸后的废墟里可能发现种类繁多的植物群和动物群。Flora Manho...
The declaration was drafted by a committee chaired by Dr Robert Song.宣言由罗伯特·桑博士领导的委员会起草。He chaired the meeting in his proper person.他亲自主持这个会议.The winning team chaired their captain off the field.获胜的队扛着队长走出场地....
另一种可能性是亲鸟会偏爱强壮的雏鸟。Another possibility is that parents favour chicks that are strong.那只蛋的壳厚0.14毫米，新孵出的雏鸟重9克。The egg had a shell thickness of 0.14mm and the newly-hatched chick weighed nine grams.雏鸟出壳后不久就不见了。The young disa...