1) Performance trend
性能趋势
2) performance tendency monitoring
性能趋势监控
1.
The application of data acquired from a certain engine to the performance tendency monitoring of aeroengine is studied indepth.
通过对某型飞机飞行参数记录系统记录信息的破译、分析和处理,对得到的与发动机性能相关的数据在航空发动机性能趋势监控中的应用进行了较为深入的研究。
3) Capability trend analyse
性能趋势分析
4) tendency
[英]['tendənsi] [美]['tɛndənsɪ]
趋势性
1.
The methods of Kendall s and Spearman s rank verification were used to analyze the variation tendency of the annual runoffs of the Weihe river at Linjiacun gauging station,the Qianhe river at Qianyang gauging station and the Qingjiang river at Yimenzhen gauging station.
针对宝鸡市渭河干流林家村站、渭河北岸支流千河千阳站和南岸支流清姜河益门镇站天然径流序列,采用Kendall秩次相关检验、Spearman秩次相关检验分析了其演变趋势性,用R/S法计算了各自的Hurst指数以分析其演变持续性,分析表明三条河流年径流量均存在较为显著的持续下降趋势;通过月径流序列的相空间重构,估算了能够表征水文系统混沌特性的定量指标即月径流序列的饱和关联维数D2和最大Lyapunov指数1λ,计算结果表明三条河流径流系统均存在混沌特性。
2.
The paper studies the randomness, tendency and periodicity of precipitation in the Yellow River basin by analytical methods of multi time series based on the data of mean areal precipitation process of the whole river basin and 29 Grade III regions generated by the last 50-year monthly precipitation of more than 1,000 hydrometeorological stations suited in the basin and surrounding area.
基于黄河流域及其周边地区1000多个水文气象站近50年的月降水资料所生成的整个流域及其29个三级区的面雨量过程,采用多种时间序列分析方法,研究了黄河流域降水的随机性、趋势性和周期性。
3.
Water resources have characteristics of tendency and persistence.
水资源具有趋势性和持续性特征。
5) trend
[英][trend] [美][trɛnd]
趋势性
1.
On the basis of the runoff data recently collected from mountain-pass stations in the Hexi area of Gansu Province, the statistic characteristics of runoff, including auto-correlation, long-term continuity, runoff variation in different decades, and statistic components (trend, period) are analyzed, and a predictive statistic model is established for the prediction of annual runoff.
根据甘肃河西区出山口水文站最新径流资料 ,对该区年、月径流统计特性 (如自相关性、长持续性、径流年代变化、趋势性、周期性及年内变化等 )利用Hurst系数、简单分波法等进行了分析 ,建立了该区年径流统计预测模型 。
2.
Based on statistics of fire in China in the past years,the characteristics of developing trend and periodical fluctuation are found in fire regularity in China.
分析中国火灾的历年统计数据,发现中国火灾发生规律同时具有增长趋势性和周期波动性特征。
3.
It is valuable to study fire regularity and trend.
分析历年中国火灾统计数据,发现中国火灾的发生规律同时具有增长趋势性和周期波动性特征:①中国火灾从90年代开始大幅度增加,在2002年达到最大,然后逐年缓慢下降;②每年12个月呈正弦函数波动,周期为12,1、2月发生起数最大,8、9月最小。
补充资料：性能
性能 性能 作为中药学术语应用时，泛指药物的四气、五味、归经、升降沉浮、补泻等特性和功能。详各该条。
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