Rule of two and three 二三法则 ; 二三原则
the rule of two-minute 两分钟规则
rule of O&W two-phase transportation 油水两相输送规律
这就是三分之二规律。
Several areas of the city clearly show the two worlds that rule Amsterdam.
城市的一些区域清楚地显示,有两个不同的世界统治着阿姆斯特丹。
Yu followed the rule of "zero waste 6R", and she and her boyfriend Joe Harvey both produced only two cans of rubbish.
于女士和她的男朋友乔·哈维都遵循了“零浪费6 R”的规则,只制造了两罐垃圾。
Okay, so the rule for adding the two vectors is, you draw the first one and at the end of that first one, you begin the second one.
矢量的加法法则就是,先画出第一个矢量,然后在它的终点,再画第二个矢量
This is a point we'll come back to, particularly when we're talking about the two most important states, two of the great powers of the period that did not have absolute rule.
这一点我们后面会详细讲,特别是当我们谈到最重要的两个,没有建立绝对统治的强国的时候
If you want to add two vectors, you can add the arrows by the rule I gave you or just add the components of x of the two guys to get the component of the sum and likewise for the y.
如果要把两个矢量相加,你可以用我教给你们的箭头相接的方法,或者就将二者的 x 分量相加,得到和矢量的 x 分量,y 方向也是这样
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