The life span of the data saved to a session is, at most, from the moment the user accesses a domain to the moment when a user times out after a preset amount of time of inactivity.
保存在会话中的数据的生命期，最长是从用户访问域的那一刻到用户在预设的一段不活动时间之后超时的那一刻。
Based on the model of multi-span slender rod, the moment equations and deflection equations of elevator rail with duplex safety gear were established and resolved in a complex state of stress.
结合双安全钳作用特点，以多跨度细长杆模型为基础，建立并求解了电梯导轨在复杂受力状态下的弯矩方程和挠曲线方程。
This paper has made use of the mo me nt distribution method to bring on the formulas of support moment of unequal span continuous beam less than or equal to four spans.
本文利用弯矩分配法推导出四跨以内不等跨连续梁支座弯矩精确值的算式。
应用推荐