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....
一些蝙蝠已经把用于发出回声定位叫声的结构专门化了.Some bats have specialized structures for emitting echolocation calls.“啊, ”叫声的回音.AAAAAAAAAAAAAHHHHHHH, the scream echoed.因此,小波分析是分析蝙蝠回声定位叫声的一种有效的新途径,有其广泛的应用价值.DWT is testified to be a new effecti...
我试图去够脚刹，但是没能踩到。I tried to reach the foot brakes but I couldn't.韦德松开手刹驶离路边。Wade released the hand brake and pulled away from the curb.他们忘了拉手刹，汽车翻滚了60英尺，掉进了河里。They forgot to apply the handbrake and the car rolled 60ft...
The material can absorb outward-going radiation from the Earth.该物质可以吸收地球向外辐射的能量。The banks would be forced to absorb large losses.银行将被迫承受巨大的损失。His ability to absorb bits of disconnected information was astonishing.他吸收利用互不...
Bob : Its proration are exploiting and selling petroleum and producing chemical products.它的业务主要是石油的开采、销售以及相关化工产品的生产.It is estimated that 60,000 shops open every Sunday and trade by exploiting some loophole in the law to ...