集中在...上

On the basis of these, the effect of acid concentration on catalyst behaviors was emphatically studied.

并在此基础上，集中探讨了前驱体制备过程中，滴加的酸浓度对催化剂性能的影响。

The outstanding stability of wavelength, excellent concentricity of the beam,and fairly longer life span(5-10 years),enhance the quality of its light beam on the base of its traditional design.

其卓越的波长稳定性、优良的光束集中特性及较长的使用寿命（5-10年），使它在原有传统设计的基础上具有更好的光束质量。

Concentration of control of mass media has congealed a t a tenuous time in national history.

大众传播媒介的集中控制是在美国历史上一个软弱无力的时期形成的。

Concentration of control of mass media has congealed at a tenu time in national history.

大众传播媒介的集中控制是在美国历史上一个软弱无力的时期形成的。

Concentration of control of mass media has congealed at a tenuous time in national history.

大众传播媒介的集中控制是在美国历史上一个软弱无力的时期形成的。

Our metrics are geared toward consumption and production of man-made goods and services, and we tend to gloss over nature.

我们的测量都集中围绕在人造产品和服务的生产和消费上，我们常常掩盖了自然的价值。

The first one is embodied by his Copernican revolution.

第一个环节集中体现在海舍尔的哥白尼式革命上。

So Heschelian philosophy of religion can be regarded as one Copernican revolution.

第一个环节集中体现在海舍尔的哥白尼式革命上。

Professional Association's disadvantages of transaction cost focus on its anti-competitive behavior, which is its native tendency.

行业协会的交易成本劣势集中体现在其反竞争行为上，反竞争行为是行业协会与生俱来的倾向。

It focuses, in particular, on the WTO Members' decision not to impose customs duties on electronically delivered products.

它集中，特别地，在世界贸易组织成员的决定之上不要加上电子地递送的产品上的关税。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。