查询词典 tracing

It deals with the invention and development of time-keeping apparatus in our country during a historical period of some three thousand years, tracing this development from remote antiquity with its sundial and clepsydra making use of the shadow of the sun down to the Dynasties of Han, Sui, Tang and Sung with their water-powered astronomical clockworks...

自远古利用日影的圭表和日晷起，中间经汉、隋、唐、宋等朝代，附装在水力天文仪器上的水力天文钟，都采用了齿轮和凸轮的传动，即已都属于机械性。元代郭守敬以后，到明初的詹希元，更发展到独立时钟机构，並有了指针和表盘。可是近四百年，即自明代万历年间，西洋的自鸣钟传来我国，我国在计时器方面的工作，始终在模制阶段，自己的发明遂归于停顿。那次会议闭幕以后，会中曾用英文出版一次，我国1956年12月，《天文学报》4卷2期用中文出版一次。现在根据一些新资料，重新加以增删和改正。

In this tracing scheme,for each legal copy of digital data there is a codeword buried in the corresponding decryption software or box.

对于每一个数字数据的合法拷贝，给出的跟踪方案都分配一个分组码的码字与该拷贝的解密软件或者相关装置相对应。

At present it is very difficult to predict all the RNA secondary structures. This paper describes RNA secondary structure prediction methods from 1970\' to this day in a systematic way some. Tracing back and following the tracks of prediction methods the author made a summary of RNA research progress and situation while a enumeration problem of RNA secondary structure is studied with the method of combinatorial enumeration.

目前所有有关RNA二级结构的预测算法要预测出所有序列的二级结构仍然很困难，本文系统介绍了从上世纪70年代以来发展至今的各类RNA二级结构预测算法，从对RNA结构预测方法的追溯和跟踪，对当今RNA研究的进展和形势做了一个总结，并且应用组合计数的技巧解决了一类RNA二级结构的计数问题。

The design method of conformal optical system based on real ray tracing was presented,designed result was satisfactory.

提出了基于实际光线追迹的共形光学系统设计方法，获得了较好的设计结果。

Improvement of continuation method in tracing PV curves of power systems.

对求取电力系统PV曲线的连续潮流法的改进。

An improved continuation method in tracing PV curves of power systems.

求取电力系统PV曲线的改进连续潮流法。

The advanced method about tracing contour line was used to draw the contour...

采用先进的等高线追踪方法，提高了绘制等高线的准确性，解决了等高点即格网点的情况； 2 基于OpenGL地形的三维可视化。

This is the one on the contour tracing and retrieval of articles, hoping to be helpful to everyone.

详细说明：这是一篇关于轮廓跟踪与提取的文章，希望能对大家有所帮助。

When tracing back to ancient times and dreaming of future, we find two contrary propositions that meet and collide in Qingcheng Mountain.

追溯远古与发想未来，两个坐标相反的命题在青城山交汇碰撞。

As a corroborant theory,what it mainly encounters is "tracing argumentation".

作为一种确证的理论，它面对的主要是"回溯论证"的问题。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。