Riverway treatment is a traditional and pragmatical engineering of an ancient and active field.

河道治理是传统实用工程，是一个古老而活跃领域。

A minority of children are sexually active before they are in their teens.

少数孩子十几岁前已有性行为。

Did you distinguish the active and nonactive page in the menu?

你在菜单里面能够辨别当前页面和一般页面？

I needed to change my lifestyle and become more active.

我需要改变我生活方式动得更多些。

Fluoroaniline is synthesized in two steps from p-nitrochlorobenzene and active potassium fluoride.

以对氯硝基苯和活性氟化钾等为原料,经二步法合成了对氟苯胺。

Most of the students in the class took an active part in extracurricular.

班上绝大部分学生积极参加课外活动。

She was active in the Society for Women’s Suffrage.

她在争取妇女选举权协会中活动非常积极。

She is very active for an octogenarian.

她已经是八旬老人了, 还很精神。

ConclusionIt may produce the new antihemorrhagic active constituent in carbonized Gardenia Jasminoides.

结论栀子炒炭后可能产生了新止血活性物质。

Birdsong is one of the most active domains in bioacoustics.

鸟声研究则是生物声学研究中最为活跃领域之一。

Balanced sentence, aphoristic writing and active vocabulary are important component parts of the semantic structure.

英语平行句、警句和积极词汇是英语句级语义结构重要组成部分。

The optimum design of the controller of compound active noise cancellation earmuff is discussed.

探讨了复合式有源消声耳罩控制器优化设计方法。

The resurgence of active clanship in contemporary rural China is no simple phenomenon.

当代中国农村宗族象大量出不是简单历史重。

The effects of prepolymer, active diluent and photosensitize on coating modification was discussed.

在预聚物、活性稀释和光敏等方面讨论了该涂料改性。

Stereovision, an active brunch of robotic technology, is one important attribute of intelligent robot.

立体视觉技术是机器人技术研究中最为活跃一个分支，是智能机器人重要标志。

When a catalytically active enzyme forms a complex with a cofactor a holoenzyme is produced.

酶蛋白和辅助因子两者结合成完整分子时，形成具有活力全酶。

He is dominating and active in manner.

他有领导作风而且能采取主动。

Corneous layer is formed by the horny protein cell of insensate active.

角质层是由无生命活性角朊细胞构成。

This sentence is in the active voice.

本句子用是主动语态。

Alkyl indicant is a new non-ionic surface active agent.

烷基糖苷是一类新型非离子表面活性。