1) weekly period
周周期性
2) periodicity
[英][,piəriə'disiti] [美][,pɪrɪə'dɪsətɪ]
①周期性 ②周波
3) periodic
[英][,pɪəri'ɔdɪk] [美]['pɪrɪ'ɑdɪk]
周期性
1.
The feasibility of this new operation was proved by the experiments in which two columns and three columns in periodic liquid material exchange were used as operation unit respectively and the system of ethanol-isopropanol(volume ratio of 1) ethylbenzene-para-xylene(volume ratio of 1) were chosen.
提出了一种新型的间歇精馏塔串联系统及其操作方法,分别以两塔液相周期性交换和三塔液相周期性交换为操作单元。
2.
The electricity market is thus described as a nonlinear, nonautonomous, periodic difference system.
并根据电力市场的物理特性,在模型中考虑了电能供需的同时性、市场需求的周期性以及市场中非连续的投标竞价方式,将市场稳定问题转化为一个非线性、非自治的周期差分系统的稳定问题。
4) quasi-periodicity
准周期性
1.
By using the transfer matrix method,the effects of Braggmirror quasi-periodicity on the photonic crystal defect mode was studied.
利用传输矩阵法研究了Bragg镜的准周期性对光子晶体缺陷模的影响。
2.
It was proposed that the doubly even order magic square transformed image has a quasi-periodicity, of which there is a semi-periodicity.
提出双偶阶幻方变换图像具有准周期性。
5) Periodicity
[英][,piəriə'disiti] [美][,pɪrɪə'dɪsətɪ]
周期性
1.
Identification for periodicity and pitch order of low noise tread patterns;
低噪声轮胎花纹的周期性和节距排列辨识
2.
Quasi-periodicity and Its Forecast of Windstorm Tide Disaster in Shanghai;
上海风暴潮灾害的准周期性及其预测
3.
Periodicity of Vascular Cambial Activity and Dynamic Changes of Cell Ultrastructure in Populus deltoides;
美洲黑杨维管形成层活动周期性及细胞超微结构的动态变化
6) cycle
[英]['saikl] [美]['saɪkəl]
周期性
1.
PET cycle developping is principle;
聚酯周期性发展是客观规律
2.
According to the development plan of North China Grid and the short circuit current increasing cycle and period of Beijing-Tianjin-Tangshan Grid,rational control scheme of short circuit current and countermeasures are put forward.
根据华北电网的发展规化,针对京津唐电网短路电流增长的周期性和阶段性,提出了合理限制短路电流水平的思路和对策。
补充资料：低血钾性周期性麻痹
低血钾性周期性麻痹
hypokalemic periodic paralysis
家族性周期性麻痹中的一种类型。为常染色体显性遗传。在我国大多数病例为散发而无家族史。发作多在夜间或清晨醒来时，病儿发觉不能移动自己的肢体，但说话和呼吸正常，重症四肢完全不能活动，不能抬头。发作时肌肉呈弛缓性麻痹，腱反射消失，感觉正常。麻痹持续数小时至2天。发作频度不等，一般不多于每月1次。发作时血清钾减低，为2.5～3.5mmol/L，心电图有低血钾表现。治疗发作时给一次氯化钾口服；重者可静脉滴注氯化钾，同时心电监护以防高钾血症。预防发作可于每晚睡前服氯化钾一次。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条