周期性的

Short-term system load variation has apparently periodicity, the load is a variable that is influenced by many kind of factors, it can be subdivided into periodic basic load component and variable load component.

电力系统负荷变化具有明显的周期性，是一个受多种因素影响的量，可以将其分为周期性的基本负荷和受多种因素影响的变动负荷两部分。

Fod AR5395 the variation of peak flux Fx of soft X-ray exhibits a periodicity about 24.3 hours, the periodicity for the occurrence rate Nx of X-ray flares is about 12.2 houds, and the area Sx of sunspot groups varies with 24.4 hours period.

观测资料分析表明，AR5395活动区演化具有周期性的特征，软X射线峰值流量F变化周期为24.3小时，X射线耀斑出现率N_x，具有12.2小时的周期性，活动区黑子群面积S_x的变化呈现24.4小时的周期。

The growth of hair follicle is determined by periodic proliferation and differentiation of stem cells.

毛囊是一个周期性自我更新的皮肤附属器，干细胞周期性的增殖和分化决定毛囊的生长特性。

With the rise and fall of the hegemon based on un-equilibrium development in its power, the hegemonic system also developed cyclically.

霸权体系随霸权国家的兴衰而呈现出周期性的特点，导致霸权体系周期性变化的主要原因是各国在权力增长方面的不均衡性。

The studies about the periodicity and stability is of basic requirement for the verification and the design of hybrid control system.

研究了线性切换系统的周期性和稳定性规律，给出线性切换系统周期性的充要条件及平稳性的充分性判据。

In ECAP route C, in order to accommodate the severe shear deformation the deformation form of lamellae cementite in pearlitic steel include periodical bending, periodical shearing and shearing fracture etc .

在C方式ECAP变形中，珠光体钢65Mn中的渗碳体以周期性的弯曲变形，周期性的剪切变形，剪切断裂等形式协调ECAP的强烈塑性变形。

Periodic tidally function influences mixed proportion of the hydrotherm and bottom currents, and temperature and component of diffuse flow also change periodically.

周期性的潮汐作用影响着底层洋流与热液的混合比例，使得扩散流的温度和成分也发生周期性的变化。

Examplesof periodic sound sources are musical instruments, vowel sounds, the whistling wind and bird songs. Nonperiodic sound sources include unpitched percussion instruments, coughs and sneezes and rushing water.

乐器的演奏、元音、鸟鸣及风声都是周期性的声音，而打击乐器声、咳嗽声、喷嚏声以及流水声则是非周期性的。

In experiments,grousers were added to wheel surface to increase driving force of wheel.Grousers can increase driving force of wheel.Yet grousers also introduce vertical wave of wheel.

轮刺增大驱动力、减小滑动的同时也带来了车轮在垂直沙面方向上周期性的位移波动，这是对月球车前进稳定性不利的一个影响因素，车轮前进速度也山于轮刺的作用产生了周期性的波动。

With the appearance of a free span pipeline, its loading types and stress state will be changed. Especially when ocean currents pass through it, a periodical vortex shedding is often produced and induces vibration of the free span pipeline. This type of vibration contributes a lot to the fatigue failure of a free span pipeline.

管跨段的出现改变了海底管线所承受的载荷形式和应力状态，尤其是在海流作用下流经管跨时，常伴随着周期性的涡旋发放，引发管跨段的周期性振动，成为管跨段发生疲劳失效的主要因素之一。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。