到目前为止，这笔账单保守估计大约为2.2万英镑。A conservative estimate of the bill, so far, is about £22,000.我的服务员麻利地撤走盘子并搁下我的账单。My waitress whipped the plate away and put down my bill.经济衰退和医疗账单逼得他们破产了。The recession and hospital bills drove th...
任一连续曲线可以借一系列很小的抛物线线段较精密地近似表示.Any continuous curve can be closely approximated by a series of small parabolic segments.在湿氧氧化中抛物线速率常数B比干氧氧化中的大得多.The parabolic rate constant B is substantially larger for wet oxidation than ...