Objective To study the effect of the priming principle and the timing principle on the onset time of cisatracurium.

目的研究预注法及限时法能否缩短顺阿曲库铵的起效时间。

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PWM mode was analyzed, and a kind of variable-resistance timing Winch being of simple structure and large power supply was put forward by using wire-wound motor and series resistance timing principle.

分析了PWM的调整方式，利用绕线式电机和串电阻调速的原理，提出了一种结构简单、功率强的变阻调速绞车。

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The ability to use light to turn specific cells on and off with very precise timing could in principle allow new therapies.

这种用 激光射线打开破损细胞的通道，以精确的瞄准杀死细胞的技术在工作原理上得到了大家的认可。

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Even France, the main foot-dragger, claims it is arguing only about the timing, not the principle, of liberalisation.

ECONOMIST: But it won��t be convincing if it can��t utter the word America

On Wednesday, European Union officials said the bloc had reached an agreement in principle on plans for an embargo on Iranian oil, though the timing and other details have yet to be determined.

WSJ: Oil Market's Iran Fears Might Be Overdone