scientific speed upgrading的用法和樣例：
例句
- With this information, control can send speed up or slow down commands to the disc drive motor.
根據這些信息，控制系統可以向盤(pán)片驅動(dòng)系統發(fā)送提速或降速的指令。 - Nowadays, the continuous improvement of the train speed results in the high rate of the freight train digression.
隨著(zhù)我國鐵路干線(xiàn)全面提速，貨物列車(chē)的脫軌事故在每年重大事故中的比率居高不下。
