查询词典 twice differentiable function

Current estimates are that global methane clathrate deposits contain roughly 20,000 trillion cubic meters of methane, which is twice the amount of all known sources of coal, petroleum, natural gas, and so on.

目前估计全球可燃冰所含的甲烷量约有2万兆立方公尺，大约为目前已知所有煤、石油、天然气等传统化石燃料的2倍。

The user does not need to undertake any clavier are inputted, need to be clicked twice with the mouse only can complete the work.

用户不需要进行任何键盘输入，仅需用鼠标点击两次就能完成工作。

I help my mother clean the room twice a week.

我帮妈妈打扫房间一周两次。

I have a file cleanout day scheduled in my tickler file or calendar for once or twice a year.

在我的提示系统或者日程表中安排每年有几天专门清理文件。

After twice student singing incidents, a morale to opposed mandarin, dialect, and foreign song was form in Taiwan young clerisy. This morale became to the activity of Campus Folk song, but it was flash in the pan. For this status, we tried to use Campus Folk song for case to analyze the process and meaning.

在1976、1977的两次学生演唱事件后，台湾的年轻知识份子遂开始出现反对旧有国台语及西洋歌曲的情绪，而这股情绪构成了「校园民歌」的浪潮，但这样的浪潮却有如昙花一现；面对这样的情形，本文遂试图以校园民歌为例来了解台湾在战后试图建立自我意识的过程及其意义。

Climatologist William Gray said Tuesday that this month will be nearly twice as busy as an average September.

气象学家威廉·格雷2日表示，今年9月美国飓风活动的频度几乎是往年同期水平的2倍。

In this paper,with twice field surveys on the same long-term site in 1980 and 1992,the organization dynamics of Cryptocarya community,Dinghushan zonal climax of monsoon evergreen broadleaved forest,was studied.

本项研究系统地研究鼎湖山森林群落的不同演替阶段的代表性群落在群落演替过程中的群落结构动态。

The Nuggets play at the Clip Joint twice in the first month of the season, but Marcus Camby has to wait more than 60 games before going back to Denver for the first time since the salary-dumping trade that made him a Clipper ...

开赛的第一个月，掘金就两次造访快船，可是马库斯·坎比想要回到丹佛复仇老东家却不得不等到60场比赛之后。

Daishin Securities analyst Zhao Pengfei day yesterday in an interview with reporters, said,"As there are 160,000,000 shares closed no disk access, close to twice the volume yesterday, means that it may also happen behind falling."

大信证券分析师赵抨篚天昨日在接受记者采访时说："由于有1.6亿股价没有磁盘访问，接近两倍的数量昨天，意味着它可能还会出现下降背后。"

His clothe are so loose as if it is made for a man twice the size of him.

他的衣服很宽大，好像是为比他个子大一倍的人裁剪的。

He has to relate with three women in the movie, and yet remain implicitly faithful to the unseen Lucinda.

让克劳德布里亚里成功地饰演试验了一个难度很大的角色：和三个女人打交道，但还要底下对观众未曾谋面的卢馨达保持忠诚。

The experiment was conducted to study effects of inulin on the growth performance, indices of immune organs and serum immunoglobulin of laying chicklings as well as the performance of inulin which replaced the antibiotics in diets by adding 0.2%, 0.4% and 0.8% of inulin, respectively.

试验旨在通过在蛋用雏鸡日粮中添加0.2%、0.4%和0.8%的菊粉，研究菊粉对蛋雏鸡生长性能、免疫器官指数和血清免疫球蛋白的影响，以及菊粉替代抗生素对蛋雏鸡的应用效果。