查询词典 conic polar

In polar coordinates method of data preparation and lofting Lofting.

极坐标法放样数据的准备及放样。

With the author s own experience at work considerably taken into account,this article makes a brief introduction of the application of AutoCAD and Total Station Apparatus in polar coordinates lofting for documentary work and field work,and also puts forward some points of view on relevant issues.

结合自已的工作体会，对A u toCAD、全站仪在极坐标法放样中内业资料及外业中的应用作了简略的阐述，并提出了自已的一些看法

This is similar to the standard Log Polar mapping available in image processing.

这是类似于标准的日志极地测绘中的图像处理功能。

The formation of tooth face is analyzed based on the theory of original curve and area as well as the logarithmic spiral polar coordinates equation.

提出了一种新型锥齿轮-对数螺旋线齿锥齿轮传动形式，并以基曲线和基曲面滚动原理为基础，结合对数螺旋线极坐标方程，分析了对数螺旋线以及对数螺旋线齿锥齿轮齿面的形成过程，建立其了齿面方程。

Then he went to Alaska and found a job as a lumberman to save money after finished the course at high school. Although lived in a rich family and his father was a doctor, he was not given money from his parents. As the effect of the polar day, the day in Alaska in summer starts from few past three and end at midnight. Thus, he could work for 16 hours per day.

虽然他父亲是医生，家庭经济环境许可，但是父母并不给他钱，他也没向家里要，高中一毕业就先去阿拉斯加伐木存钱，因为阿拉斯加夏天日照很长，太阳到午夜才落下，三点多又升上来了，他一天如果工作十六小时，伐一季木的工资可以让他环游世界三季。

The chemical constituents of Huperzia serrata Trev. are mainly flavonoids, triterpenoids and alkaloids. In order to get further comprehension of lycopodium alkaloids, we studied the low-polar section of the alkaloids extraction of Huperzia serrata and 19 alkaloids were isolated by ways of silica gel, RP-18 and Sephadex LH-20 etc. All of their structures, including five new compounds and two known ones that were firstly found from this genus, were elucidated with the help of Mass, IR, NMR spectra and so on. The five new alkaloids (HS-07, HS-08, HS-09, HS-10 and HS-11) are belonged to lycopodine class. The other two ones that were new to this genus (HS-18 and HS-19) are belonged to miscellaneous group.

蛇足石杉的主要化学成分为黄酮，三萜和生物碱，为进一步了解该植物的生物碱成分，我们研究了蛇足石杉氯仿总碱低极性部位的生物碱成分，运用正相硅胶、反相RP-18、凝胶LH-20等方法分得了19个生物碱，并通过质谱、红外、核磁共振等波谱鉴定了它们的结构，其中5个为新化合物，2个为首次从该属植物中分离得到的化合物，所分得的新化合物：HS-07、HS-08、HS-09、HS-10和HS-11均为lycopodine类石松生物碱，首次从该属植物中分得的化合物为miscellaneous类：HS-18和HS-19。

They've encountered time travel, angry island inhabitants, man-eating black smoke and geographically misplaced polar bears.

他们看到了时空穿梭、愤怒的岛上居民，食人黑烟和地理错位的北极熊。

This is not for those with manic depression or bi-polar disorder.

这不适合狂躁消沉或bi极混乱的那些人。

Trunko is the nickname for an animal reportedly sighted in Margate, South Africa on October 25, 1924, according to an article entitled "Fish Like A Polar Bear" published in the December 27, 1924 edition of London's Daily Mail.

一篇1924.12.27日以"鱼形躯体的北极熊"为题发表在伦敦日报上的文章说Trunko是一种1924年10月2日在南非Margate目睹到的动物的别名。

The polar bear ___ as a marine mammal and can ___ up to 25 years.

北极熊___为一种海洋哺乳动物，它可以___25年。

In other research, chondroitin is being investigated for use in several other conditions.

在其它研究，软骨素被调查用於几个其它情况。

They would make fun of him for having to work.

他们拿他的工作来开玩笑。