And with the process of population aging was speed up in rural area. The fluctuating of mortality was influenced by demographic and non-demographic factors in common.
农村地区人口老化程度加快，人口因素与非人口因素共同影响死亡率的变化。
The speed of full mould can be repeated accurately on the basis of given parameter values, and is not influenced by leaking in furnace and pressure fluctuating.
充型速度可以根据设定值精确重复再现，不受炉内泄漏和管路气压波动的影响。
Experiments of over 900 hours matching diesel were done in factory, covering the speed governor's start, speed performance, speed stability, and speed fluctuating with back pressure.
简要介绍了它的系统结构、功能与工作原理，并对该调速器进行900余小时多工况配机试验，主要包括起动试验、调速性能试验、转速稳定性试验和耐背压波动试验。
According to the particular profile of mean and fluctuating wind speed in hilly terrain wind field, mean, background and resonant wind loads of tall buildings are investigated.
根据山地风场中特有的平均和脉动风速特性，研究高层建筑平均风荷载、背景和共振等效风荷载特性。
According to the particular profile of mean and fluctuating wind speed in hilly terrain wind field, mean, background and resonant wind loads of tall buildings are investigated.
根据山地风场中特有的平均和脉动风速特性，研究高层建筑平均风荷载、背景和共振等效风荷载特性。
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