OBJECTIVE To establish chromatographic fingerprint of officinalis by HPLC in order to control its quality.

AQ derivatives are very stable to repeated cycling throughoxidized and reduced forms.

3蒽醌衍生物在不断重复的氧化还原过程中非常稳定.

Flett has examined a series of anthraquinones with various substituents on the ring.

福莱特测试了一系列环上具有不同取代基的蒽醌.

This has been confirmed by Fuson and Josien in studies on substituted benzanthracenes.

Fuson和Josien在 取代的苯并蒽类化合物的研究中验证了这一点.

Press the red button if you want the machine to stop.

想要机器停下来就摁红色的按钮.

That day you'll see how l cut you down to size!

到时候你就看着,我怎么把你摁扁搓圆!

This black key won't sound.

这黑键摁下去不响.

She seized his hair, and kept him down.

她抓住了他的头发, 并摁住他不让他起来.

The driver sounded his horn.

司机摁响了喇叭.

In case of emergency, break the glass and press the button.

遇到紧急情况时, 击碎玻璃罩并摁下按钮.

I'd try to get away and he'd pin me down, saying he would kill me.

我曾试图逃脱，可他把我摁倒在地，并说会杀了我。

" Why, we're a handsome people, " thought Scarlett with pleasure.

" 唔, 我们两口子都很漂亮, " 思嘉心里乐滋滋的想道.

Well, I don't like the look of that.

唔，我不喜欢事情看起来的样子。

But light and shadow made up harmonious rhythm like a beautiful tune played on a violin.

但光与影有着和谐的旋律,如梵婀玲上奏着的名曲.

Ada was half crying.

婀达几乎要哭起来了.

Timing also plays an important role in pruning avocado trees.

定时也是修剪鳄梨树的一条重要原则.

The mother leaped up from her chair when she heard the tragic news.

当母亲听到噩耗时,她从椅子上一下子跳了起来.

When the sad tidings of his death were was received, we all wept.

听到他去世的噩耗时, 我们都哭了.

The whole nation was plunged into deep sorrow at this news.

当全国人民听到这个噩耗时,都沉浸在极大的悲痛之中.

They also divided the jaw at the chin, allowing it to separate and open further.

它们还可以分开下巴上的颚, 而让嘴张得更大.

Its chief structures are teeth ( see tooth ), tongue, and palate.

主要结构有牙 、 舌和颚.