即使我拥有目标、希望及计划，但是我已经懂得了“完美状态”是可遇不可求的。
Even though I keep goals, hopes, and plans, I’ve learned not to let “perfect circumstances” be a condition for my contentment.
即使我拥有目标、希望及计划，但是我已经懂得了“完美状态”是可遇不可求的。
Even though I keep goals, hopes, and plans, I've learned not to let "perfect circumstances" be a condition for my contentment.
文摘：利用马尔可夫过程给出了串联可修系统各状态的不可用度表达式及平均修复时间表达式。
Abstract: In this paper, Formula of MTTR( meam time to repair) and unavailability of every states for series repairable system are given using Markov processes.
除了生活在水中的哺乳动物如海豚、鼠海豚及几种海豹可以使两半大脑轮流处于睡眠和清醒的状态，大多数哺乳动物是不可以半脑睡眠的。
Not as many mammals can sleep unihemispherically; only aquatic mammals such as dolphins, porpoises, and a few species of seal can alternate sleep and wakefulness between the side of the brain.
除了生活在水中的哺乳动物如海豚、鼠海豚及几种海豹可以使两半大脑轮流处于睡眠和清醒的状态，大多数哺乳动物是不可以半脑睡眠的。
Not as many mammals can sleep unihemispherically; only aquatic mammals such as dolphins, porpoises, and a few species of seal can alternate sleep and wakefulness between the side of the brain.
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