The sun is not considered a variable star, but it does undergo periodic changes in activity known as the sunspot cycle.
太阳是不被认为是变星，但它的变化进行定期的活动被称为太阳黑子周期。
However, the radon and thorium daughters effects and the system noise and their periodic changes will result in fake alarm.
但氡子体影响、系统噪声造成的数值不稳定、剂量率具有周期性的变化均会使数据出现波动从而造成无效的报警。
Besides these, the statistics tells us that flocculi brightness may have 1-2~d periodic changes before the outbursts of flares.
此外，统计还显示出许多耀斑爆发前谱斑亮度可能有着1—2天的周期性变化。
Analyzing the sequence of the parameters by the power and cross spectra yields main periodic changes of quasi-two-week oscillation.
对三参数序列应用功率谱和交叉谱分析得出，其主要周期变化为准两周振荡。
Complex periodic changes and trending changes can be observed in tide and groundwater level affected by the tide in coastal aquifers.
海潮及受其影响的海岸带地下水位具有复杂的周期性变化和趋势性变化。
RSS provides an elegant and widely accepted format for content providers to encode and syndicate the periodic changes made to their site's content.
RSS为内容提供者提供了一种广泛接受的优雅格式来编码和连锁对其站点内容的周期性更改。
This feature can be used to tune database performance according to periodic changes in use, such as switching from daytime interactive use to nighttime batch work.
可以使用这个功能，根据使用过程中的周期变化(例如从白天的交互式使用转换到夜间的批处理工作)来调优数据库性能。
You'll probably get better overall results if you spend a user's hassle budget ensuring that his initial password is strong, rather than on periodic changes.
如果你花用户麻烦预算确保其初始密码强，而不是定期更改，你可能会更好的总体结果。
Hydrologic sequence is a complicated time sequence, which has characteristics such as periodic changes, random changes and increasing or decreasing trend changes.
水文水资源序列是一个具有周期变化、随机变化和递增或递减趋势变化的复杂时间序列。
The organic carbon content is in close relation to productivity in the ocean, which can be used to reconstruct the long periodic changes in ocean paleoproductivity.
有机碳含量与海洋生产力关系极为密切，它可用来重建海洋古生产力的长期变化。
The journal is a special file that logs the changes destined for the file system in a circular buffer. At periodic intervals, the journal is committed to the file system.
所谓日志就是一种特殊的文件，它会在一个循环的缓冲区内记录文件系统的修改，然后将其定期提交到文件系统。
Periodic updates typically contain only those changes that provide high value to clients and customers of the derivative models.
定期性的更新包含的变更，一般只会向衍生模型的客户提供高的价值。
At a periodic interval, the outgoing email is sent, and the mail file is replicated with the server version to exchange any changes between the two databases.
按照周期性间隔发送外发的电子邮件，同时复制服务器上的邮件文件来交换两个数据库之间的任何更改。
When enabled, changes are written to the journal logs first. Periodic group commits (currently every 100ms) then handle playing these changes back on the real data.
开启该功能时，变更会先写入Journaling日志，定期集中提交(目前是每100ms提交一次)，然后在真实数据上进行这些变更。
As your child grows up and your situation changes, you may change your mind about early decisions you made. Be prepared to have periodic discussions over time.
如果小孩已经长大，或你的情况有改变，你可能会改变以前的主意，做好定期讨论的准备。
In kinesin's actual movement, it continuously changes its conformation to catalyze ATP's hydrolysis. The role of microtubule is not a simple periodic potential.
在实际运动中，马达不断进行着自身构象变化并催化AT P水解，微管产生的势场也不仅仅是一个简单的周期势函数。
Periodic climate changes cause periodic river accumulation and erosion, resulting in a series of benches.
气候的周期性变化使河流发生周期性的堆积与侵蚀，会形成一系列阶地。
An active tectonic movement changes the space shape of stratum and result in periodic stress concussion, which will influence hydrocarbon migration and accumulation as fluid deposit in stratum.
构造活动改变地层的空间形态，同时产生周期性的应力震荡变化。油气作为储存在地层中的流体矿产，在运聚期明显要受到构造活动的影响。
Till the late stage, the periodic sea-level changes resulted in the formation of the evaporite deposits in restricted shallow-water basin and mudstones and gravity-flow deposits in deep-water basins.
晚期因周期性的海平面变化导致形成局限浅水盆地、蒸发岩沉积和深水盆地泥岩和重力流沉积。
It is critical that senior management conduct periodic reviews to ensure that its risk management program continues to meet the company's needs and that necessary changes are made.
高管定期对风险管理程序进行复核是非常关键的。它确保风险管理程序能持续的满足公司的需要并作必要的修订。
Functions Daily Green Tips - As the weather changes, you will receive periodic customized caring green tips and PowerWise eco-living ideas to save energy costs.
功能列表 全天候节能生活好点子-因应天气变化，定期提供贴心节能点子，助您智慧用电，享受绿色舒适的生活，又可节省能源开支。
Periodic acid Schiff reagent(PAS) was used to determine the contents of liver and muscle glycogen. HE staining was performend to observe the changes in the liver and kidney tissue structures.
高碘酸希夫氏染色（PAS）观察肝脏、肌肉糖原含量变化，HE染色观察肝脏、肾脏的结构变化。
When the speed exceeds some value, the chaotic motion suddenly changes into periodic motion.
当转速超过某值时，混沌运动将激变为周期运动。
The results show that the coupled bending-torsional vibration range increases and the motion changes from periodic motion to quasi-periodic motion as the mass eccentricity rises;
结果表明：随着质量偏心的增加，弯扭耦合区的范围增大，系统运动由周期运动变为概周期运动；
Men, such as periodic somnolence Although clinical disease does exist, but the cycle is not as female-like changes.
而男性，这种周期性嗜睡病象虽然临床上确实存在，但其周期并非如女性般变化。
The microstructure analysis of the butterfly wing's squamae with structure color properties shows that the specific bio-tissue is patterned with 2d ordered periodic dielectric changes.
对具有结构反光性质蝴蝶鳞片的微观结构分析证实特殊生物组织体可以构成具有反光作用的二维有序结构。
The microstructure analysis of the butterfly wing's squamae with structure color properties shows that the specific bio-tissue is patterned with 2d ordered periodic dielectric changes.
对具有结构反光性质蝴蝶鳞片的微观结构分析证实特殊生物组织体可以构成具有反光作用的二维有序结构。
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