1、It have accuracy and speediness signals and dates gather function, real-time control function.
實(shí)現(xiàn)精確、快速的信號(hào)、數(shù)據(jù)采集與處理功能和系統(tǒng)的實(shí)時(shí)控制功能。

2、I was surprised by the speediness of their arrival.
他們的迅速到來(lái)出乎我的意料之外。

3、This method is characterized by simple operation and speediness without environmental pollution.
該方法操作簡(jiǎn)單、快速，不污染環(huán)境。

speediness翻譯