1) frequency changing strategy
换频策略
1.
According to the present High Frequency(HF) Air-Ground Communications,this paper derives the function relation between aircraft flying position and time,simultaneously proposes a new frequency changing strategy based on SNR sorting.
针对短波地空通信,推导出了飞机飞行位置与时间的函数关系,结合位置关系,并基于ITS区域信噪比数据,采用插值算法确立了各信道航线信噪比随时间的分布曲线,依据信噪比的分布,得出了一种依据信噪比排序的换频策略。
2) spectrum strategy
频谱策略
3) replacement policy
更换策略
1.
Under the conditions that the repairman vacation time is respectively random variable and constant,replacement policy is considered based on the working.
在修理工休假时间分别为随机变量和定长的情况下,选取系统的总工作时间T和故障维修次数N为更换策略,以长期运行单位时间内的平均停机时间为目标函数,通过更新过程和几何过程理论建立数学模型,导出了目标函数的解析表达式。
2.
Assume that the system after repair is not "as good as new", by using geometric processes we consider a replacement policy N based on the f.
在该系统为”修复非新”时,我们利用几何过程考虑了以系统的故障次数N为更换策略,以长期运行单位时间内的期望费用为目标函数,通过目标函数最小化确定了最优更换策略。
3.
An optimal replacement policy for series repairable system is studied assuming that the component after repair is not "as good as new" by using the geometric process model.
在假定故障部件不能"修复如新"的条件下,基于几何过程模型研究可修串联系统的最优更换策略。
4) The way of change medicine
换药策略
5) commutation strategy
换流策略
1.
Improvement of four-step commutation strategy for matrix converter based on two line voltage synthesis;
矩阵变换器双电压法四步换流策略的改进
2.
Improvement of commutation strategy of matrix converter;
矩阵式电力变换器换流策略的改进
3.
Aiming at safe commutation and improving quality of output waveforms,the paper presents a new varying-step safe commutation strategy of matrix converter by analyzing the character of traditional four-step commutation and improved four-step commutation strategy.
分析了传统四步换流及改进的四步换流策略的特点,以安全可靠换流和改善输出波形质量为目标,提出一种新的矩阵变换器变步长安全换流策略。
6) shifting strategy
换档策略
1.
The on-line reasoning optimal shifting strategy was realized by means of Motorola single-chip computer s characteristics and fuzzy control instructions.
结合MOTOROLA模糊控制器的专用指令、单片机系统的特点、充分考虑了模糊换档策略要实现的功能和具体要求,实现了单片机在线推理的AMT模糊换档策略的高效方法。
补充资料：更换彩壳
随着手机的逐渐普及，人们对手机的要求已不单单是要求其内在的质量或性能，对外观的追求也日益增强，单一的手机外形或外壳已不能满足要求个性的手机用户的需求。所以手机更换彩壳的功能被厂家广泛应用。
更换彩壳顾名思义即手机可以根据用户个人爱好或需求随意更换手机原有外壳。目前，更换手机外壳主要有三种类型：前后壳均可更换；仅能更换前壳；仅能更换前壳上一部分面板。
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