presence造句

Isopentyl lactate was synthesis from acid and isopentyl alcohol in the presence of ferric chloride hexahydrate.
在六水三氯化铁存在下可以由乳酸和异戊醇合成乳酸异戊酯.

Rather than politely lobbying politicians, Gay Dignity will be making its presence felt through demonstrations.
“同性恋尊严”游行活动不会彬彬有礼地向政客们游说，而会通过示威引起关注。

Vitamin C is a good marker for the presence of other vitamins and nutrients in frozen food.
维生素C的存在是冷冻食品里存在其他维生素和营养成分的很好说明。

The presence of the two policemen unsettled her.
两名警察的出现让她感到不安。

His personal presence is unimpressive and his speech contemptible.
他气貌不扬、言语粗俗.

The Queen is gracing us with her presence.
女王莅临使我们不胜荣幸.

They sat together on the sofa, overcome by each other's presence, beyond all except fragmentary endearments.
他俩在沙发上坐在一起, 由于重逢而激动得什么话也 说 不出来, 只是时而迸出几个表示亲热的词儿.

I had much presence of mind to bring myself off.
我十分镇静地逃了出来.

Recent excavations testify to the presence of cultivated inhabitants on the hill during the Arthurian period.
最近几次发掘证实了亚瑟王时期这座山上有农耕人口居住过。

My presence at the afternoon's proceedings was superfluous...
我去参加下午的活动是多此一举。

Thank you for coming, James. Unfortunately, I don’t think your presence will make a whit of difference to the outcome of this meeting, as I’m fairly sure our demands won’t be met.
詹姆斯，谢谢你能来。但不幸的是，你的出席丝毫不能改变这次会议的结果。我确信我们的要求得不到满足。

The Philippine government wants the US to maintain a military presence in Southeast Asia.
菲律宾政府希望美国继续在东南亚驻军。

He was a militant idealist who crusaded against racial bigotry by growing faint in its presence.
他还是个富有战斗精神的空想家,他看到种族偏见的现象就要晕倒,以此来表示他的反对.

In the presence of acetic acid, p - anisidine reacts with aldehydes producing a yellowish color.
在乙酸存在下, p - 茴香胺与醛类反应产生黄色.

Today the president is honouring us with his presence.
今天总统的出席使我们感到十分荣幸.

She started to be affected by the ghostly presence she could feel in the house.
她觉得这座房子里有可怕的鬼怪，开始变得神经紧张。

Glycosides are metabolized into aglycons in presence of intestinal bacteria before they are absorbed.
苷类中药生物利用度低,摄入后需经肠道细菌代谢成苷元而发挥其药理作用.

Jimmy's presence had infuriated Hugh.
吉米的到场激怒了休。

Her presence lent an air of respectability to the occasion.
她的到场使那种场合增添了崇高的气氛.

Even the most boring meeting was enlivened by Dan's presence.
即使是最无聊的会议，只要丹一出现，也会变得有趣起来。

• #presence