This paper describes a series of new HF complexing liquid fluorinating agents , and there usage.

FCC LCO was treated by an solvent containing complexing agent followed with caustic washing in laboratoty.

用溶剂和微量萃取剂组成的复合溶剂对催化裂化柴油络合萃取,再结合碱洗来改善其安定性.

Ultrafine copper powder was prepared using hydrate as reducing agent and water as the complexing agent.

以氨水作为络合剂,使用水合肼作为还原剂制备超细铜粉,通过正交实验确定最优工艺.

BHN's organic acid is considered nature's best chelating complexing technology.

BHN的有机酸被称之为自然界最好的螯合剂.

The agents, complexing agents and reducing conditions were studied in detail.

较详细地研究了还原剂 、 络合剂和还原条件.

He had a naturally ruddy complexion.

他的脸色天生红润。

Every time the political complexion of the government changed, so did the defence policy.

每当政府的政治性质发生变化，国防政策也会随之变化。

His complexion was colorless and he hadn't shaved.

他面无血色，胡子也没刮。

Mitchell is well built, of medium height, with a dark complexion.

米切尔体格健壮，中等个头，肤色黝黑。

My complexion remained pale and pasty.

我的脸色依旧苍白。

His fresh complexion made him look younger than he was.

他的好气色令他看上去比实际年龄年轻。

She has a poor complexion and pock marks on her forehead.

她满面菜色，额头上有些麻子。

a move which changed the political complexion of the country

改变国家政局的举措

Her resignation puts a different complexion on things.

她一辞职局面就全变了.

My complexion is a little dark. What is the best color foundation I should use?

我的肤色比较深, 什么颜色的粉底霜最适合我用?

Typical symptom: exhausted, pallor complexion, palpitations, shortness of breath, limbs cold and excessive sweating.

典型症状: 神疲乏力, 面色苍白, 心悸气短, 肢冷多汗.

Her eyes, complexion, and hair were fresh and healthy.

她的眼睛 、 面色和头发都新鲜健康.

I tried lying, but my pale complexion gave me away.

我企图说谎蒙混过去, 可我苍白得面色露了馅.

Your complexion is so improved.

你的容貌变得如此漂亮.

Red does not suit with her complexion.

红色与她的肤色不协调.

How pale that girl's complexion!

那女孩的脸色多苍白!