Since you know the velocity of the transmitter from this ratio since you know the period, R which is this, you now also find the radius R.
既然根据这个比例,知道了发射机的速度,既然你们知道了周期，就是这个，也就知道了半径。
2
Relations between benzene to propene ratio(R) and reactive results in alkylation were studied.
对烃化过程中苯丙烯比（R）与反应结果的关系进行了研究。
3
By lowering the reserve requirement ratio, or R. R. R. , by half a percentage point, the central bank is partly seeking to offset its own actions in support of the currency.