查询词典 periodic

In the last 20 years, many mathematicians used Moser Twist Theorem to study more complicated dynamics for nonlinear oscillations, such as the existence of quasi-periodic solutions and invariant tori, the Lagrange stability, etc.

近20年来，国内和国际上的一些数学家开始利用Moser的扭转定理来研究非线性振动的更为复杂的行为，如拟周期解和不变环面的存在性，解的Lagrange稳定性。

Periodic brushing is needed to remove the moulting hair.

刷牙需要定期删除蜕皮头发。

Plot and display a moving cluster of periodic brainwave signals.

所有这些高科技的目的是策划和显示周期脑电波信号的一个移动的串。

Tent, for the nomad in Chinese history, has been muchly constant as it is the best architecture for the nomad in working. Periodic or aperiodic graze has led in instability of residence and working facility, and tent becomes the sole selection in habitation for thousands of years due to its effective collection and transportation during regular and constant migration.

同样我们再看中国历史上的游牧民族居住的帐篷，之所以长久不变，是因为这是最最适合游牧民族生产作业的建筑功能形式，他们定期或不定期的放牧造成了住所和生产工具的流动性，在经常性的、不断迁徙情况下，帐篷这一简单有效的居住形式因其便于折叠收藏及运输，自然就成了其几千年来不变的居住建筑唯一选择。

The model of periodic bond chain was used to explain the formation of the multilayer structure.

利用周期键链理论模型解释了层状结构碳酸钙聚集体的形成过程。

In Part 3 we study the mutualism system with several delays Sufficient conditions are obtained for the existence of positive periodic solutions of the system by using the theory of Mawhin coincidence degree .

第三部分考虑了两种群带多时滞的互惠系统我们利用Mawhin重合度理论，得到了系统正周期解的存在性的充分条件，推广了文[28，29]的结果，并且删去[30]的某些条件。

In Part 3 we study the mutualism system with several delaysSufficient conditions are obtained for the existence of positive periodic solutions of the system by using the theory of Mawhin coincidence degree .

第三部分考虑了两种群带多时滞的互惠系统我们利用Mawhin重合度理论，得到了系统正周期解的存在性的充分条件，推广了文[28，29]的结果，并且删去[30]的某些条件。

Diagnosis and differentiation: differential diagnosis with low potassium periodic paralysis, myasthenia gravis and acute myelitis

4，诊断和鉴别诊断：本病主要与急性脊髓炎，急性脊髓灰质炎，周期性麻痹鉴别

Diagnosis and differentiation: differential diagnosis with low potassium periodic paralysis, myasthenia gravis and acute myelitis.

临床分型。4。诊断和鉴别诊断：主要与低钾型周期型麻痹、脊髓灰质炎鉴别。

Periodic visual field and three dimensional disc examination are important for high myopic patients.

定期视野及三度空间视神经的检查在高度近视病患是重要的。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。