Obama has great timing, and a sense of self-deprecation honed over years of making fun of his name and his ears.
奥巴马很会把握时机，而且很会自嘲，这是他多年来拿自己的名字和耳朵开玩笑磨练出来的。
2
For Variable Valve Timing (VVT) system, a kind of self-learning control method was proposed.
针对可变相位机构，提出了一种自学习型的控制方法。
3
According to the loops of the total digital DC timing and applied self-adaptive principles, deduce the mathematic model of the speed, armature voltage and armature electrical current loops.