首次的

At the age of seven and a half Christophe was ready for his first concert.

七岁半时，克利斯朵夫已经准备好举行他的首次音乐会了。

So the study of phosphate and chroma removal with modified fly ash was carried out for the first time.

本试验首次进行了采用酸改性粉煤灰对抗生素废水进行除磷、脱色处理的试验研究。

This is the first time in the sex chromosome found AIDS-related genetic mutation.

这是首次在性染色体上发现与艾滋病相关的遗传突变。

Oceanus watches are the first ever atomic solar based chronograph watch; making it a one of a kind piece.

大洋斯手表是首次基于原子太阳能计时手表，使它的一类作品之一。

Sediment core samples were collected from the continental shelf of the Chukchi Sea in July 1999 and rare earth elements were measured by instrumental neurton activation analysis.

于 1 999年夏季我国首次北极科学考察期间在楚科奇海采集了三个沉积物岩芯，并采用中子活化法测定了沉积物样品中稀土元素的含量。

QINGDAO, Shandong Province: China's first scientific research ship to circumnavigate the globe returned home yesterday after300 days at sea.

青岛，山东省：中国科学考察船首次完成300天的环球航行于昨天返航。

Compounds 25, 26, 27, 28, 30, 33, 34, 35 were first isolated from Citrus grandis Osbeck.

化合物25，26，27，28，30，33，34，35为首次从柚中分离得到的化合物。

In this dissertation, the deforming process of Continuous Extrusion Cladding has been systematically studied by both theoretical a...

本文首次对连续挤压包覆成形过程进行了系统的理论和实验研究，主要内容包括： 1。

A three-dimension orientation tracking device is developed based on the algorithm, in which the sensor employs a three-axes fluxgate magnetometer and a clinometer.

本课题在国内首次完整地创建了直流式六自由度电磁跟踪算法，实现了一套完整的直流式六自由度电磁跟踪系统。

In this study, crystal structure and its defects in the compounds of TiMnSi〓type and 〓-type were studied, and difference in structure between such two phases and the topologically close-packed phases was analysed.

本文首次利用HREM系统研究了TiMnSi〓型化合物与〓型化合物的晶体结构及缺陷，并分析了。。。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。