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....
有些人带着迷惘的或有点狂乱的眼神向周围扫视.Some of them stared about with a dazed or half - wild expression.他好象变得狂乱起来,正在乒乒乓乓地敲门.He seemed in a frenzy and was pounding the door.我非常清楚,他在每次公开亮相后那种近乎狂乱的不安全感.I knew only too well the nearly franti...
Bonnet Joint ? joint design varies with ANSI class rating.阀盖连接-ANSI压力等级不同,连接结构也有所不同.She experienced more trouble while trying to open the bonnet of the car.她设法把汽车引擎罩打开时碰到了麻烦。The bullets ricocheted off the bonnet and wind...
A forty-foot-high concrete wall encircles the jail.监狱周围有一圈40英尺高的混凝土墙。The concrete will stay as solid as a rock.混凝土会像岩石一样坚固。These targets consist of three mock airstrips and two concrete pads.这些目标分别由三条模拟机场跑道和两个水泥平台组成.It w...
The enemy chased the decoys down to the place of ambush.敌人将诱骗者一直追到伏兵所在地.We should severely punish those people acting as decoys for doctors.我们一定要严厉打击医托儿.The only response to the missiles: decoys and simulation.对于飞弹的反应: 诱...
Prices fluctuate from year to year.物价年年波动.Body temperature can fluctuate if you are ill.人患病后体温可能会上下波动。The actual cost may fluctuate above and below that standard.实际成本可在标准成本的上下范围内增减....