From the instant a pilot pulls that handle to the point where he can look up and see a parachute over his head is normally about 1.5 seconds.
从飞行员拉动弹射拉手的那一瞬间到看见降落伞在头顶上打开的时间一般是1.5秒，可就是这么短的时间内，会发生的事情还有很多。
I have felt this instant a twinge of sciatica in my left gluteal muscle.
这会儿我感到左臀肌的坐骨神经痛。
In that very instant, a loud knock sounded on the door.
就在这一刹那，有人在敲门。
Its current control action is obtained by solving, at each sampling instant, a finite horizon open-loop optimal control problem, using the current state of the plant as initial state;
它的当前控制作用是在每一个采样瞬间通过求解一个有限时域开环最优控制问题而获得。
At the critical instant, a change of plan flashed on her mind.
在这关键时刻，她的心中突然产生了一个全新的计划。
At that same instant, a deafening explosion set the Windows rattling.
正在这时，一声震耳欲聋的爆炸突然袭来，把窗玻璃震得当当地响。
For an instant, a sigh of regret for "great aspirations difficult to fulfill" overwhelmed me!
霎那间，一种“壮志难酬”的慨叹控制了我！
For an instant, a sigh of regret for "great aspirations difficult to fulfill" overwhelmed me!
霎那间，一种“壮志难酬”的慨叹控制了我！
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