first time的例句大全

In this study, for the first time, DDRT-PCR technique was applied in analyzing the difference on gene expression between alate and apter in Rhopalosiphum padi.

本论文采用DDRT-PCR技术首次从基因表达水平上研究蚜虫的翅型分化。

The antidepressant-and anxiolytic effects of asarone ( AN) were investigated by means of behavioral pharmacology for the first time.

摘要本课题主要运用行为药理学手段研究了细心脑（asarone，AN）的抗抑郁和抗焦虑作用及其对中枢系统的其它作用。

Paris Hilton has monkeyed around with some chimps in the past, but this is the first time she has been spotted locking lips with a real chimpanzee.

帕丽斯·希尔顿以前也很喜欢黑猩猩，但这却是她第一次亲吻真正的黑猩猩。

Juli: That was the first time I ever heard my parents really yell at each other.

那是我第一次听到我父母大吵

For the first time, I felt free to be myself.

这是第一次让我感觉到自由自在地做自己。

Microwave technique applied in the polysaccharides in fruit of melia azedarach has been obtained for the first time.

首次运用微波技术从地产苦楝果实中提取出多糖，反应速度加快。

For the first time, AWE is used in anew field: antenna optimization design.

另外把波形渐近技术引入到一个崭新的领域：天线性能优化设计。

This year, the full moon and the autumnal equinox happened on the same day, for the first time in19 years.

今年，满月与秋分正好落在同一天，此种巧合为19年来的首次。

There she was able to see the aurora borealis for the first time in her life.

在那里，她第一次亲眼看到了北极光。

After synthesizing previous philosophers' principle thoughts of atomism and idealism, Aristotle put forward the concept of substance definitely for the first time and gave a classic explanation of it.

亚里士多德综合了先前哲学家的原子论本原思想和理念论本原思想，第一次明确提出了实体概念，并对这一概念作了经典性的论述。

In despair she had dropped the subject for the time, only to renew it at the first opportunity.

失望之余她暂时搁起这一话题，但一有机会她又旧事重提。

At first I thought, it just takes time.

一开始我想，过一段时间就好了。

Being a first time offender , the man received a light sentence in the end.

由于是初犯, 那名男子最后还是被从轻判罚. )

By the time the attack came , at first light, we were already at work.

进攻开始那天, 我们天刚亮就开始忙碌了.

For the first time, a uniform formula of the relative density of honeycomb is established, which include the results by Gibson and Ashby. 2.

首次建立了蜂窝材料相对密度的统一公式，把Gibson、Ashby的结果作为特例包含在内。

As far as we know, this was the first time convex hull was introduced to data streams.

据我们所知，这是第一次把凸包算法应用到数据流的突变检测上来。

It is also the first time using quartz-clastic rock for the artificial aggregate in China.

其料源采用石英碎屑岩也属国内首次。

By setting two perspective cameras at the first molars of the upper jaw and using the OpenGL selection mode, the real-time collision detection with high efficiency between lower and upper jaws can be realized as the lower jaw rotates around the axis of the articulator.

该方法通过在上颌左右第一磨牙近中舌尖处建立透视视景体，利用OpenGL的选择模式，可以实时地检测下颌模型绕牙合架转动轴线旋转过程中与上颌模型碰撞对位情况，效率很高。

On the origins issue, we carry out an inspection focus on two sides: one is the specific time when the armorial inscription appearing on the bronze wares; the other is the character can be traced back to when the first mark or symbol emerged.

关于渊源问题，我们主要从两个方面进行了考察：一是族徽文字在青铜器上出现的具体时代；二是族徽文字出现最早能追溯到什么时候。

He held that the universe was infinite in both space and time and invented the world's first eauatorial armillary sphere.

他提出“浑天说”，认为宇宙在空间上没有边界，在时间上没有起点。他创造的天文仪器浑天仪，是一种演示天体星象运动的表演仪器。