在现有的计划更换模型的基础上，研究了一种备件有限及部件可修的更换策略问题。
Based on the present models of planned replacement, this paper studies on the problem of replacement policy with repairable units and limited spares.
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。
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.
利用几何过程，以系统大修次数N和大修时间间隔T为更换策略，选择最优策略（ N ， T）使系统经长期运行单位时间的期望费用最小。
The problem is to determine the optimal replacement policy ( N , T )? such that the long-run expected cost per unit time is minimized.
又如，可以实行严格的密码策略，要求用户选择一个强密码，并经常更换密码。
A strict password policy might be put in effect that requires users to select a strong password and change it on a frequent basis.
在这种情况下，将Xpath更换为DOM，后者是另一种高效的定位策略。
In such instances, change Xpath to DOM, which is another efficient locating strategy.
许多企业环境都具有相应的密码策略，通常需要定期地更换密码，这样做实际上反而鼓励了不好的密码行为。
A lot of corporate environments have password policies that actually encourage bad password behavior by requiring frequent password changes.
另外，如果更换PD P实现，则可以重用为旧PDP编写的XACML策略。
Also, if you switch PDP implementations, you can re-use the XACML policies written for the old PDP.
针对某轧钢厂自动化全连续轧机的生产管理中存在的设备检查、更换周期问题，对自动化连续轧机换辊策略开展研究和探讨。
Strategy on roller replacement at a fully automatic continuous rolling mill, together with its equipment inspection and replacement cycle in production management, has been studied and discussed.
针对某轧钢厂自动化全连续轧机的生产管理中存在的设备检查、更换周期问题，对自动化连续轧机换辊策略开展研究和探讨。
Strategy on roller replacement at a fully automatic continuous rolling mill, together with its equipment inspection and replacement cycle in production management, has been studied and discussed.
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