sampling instant meaning in English

采样时刻
抽样瞬间

Between sampling instants there is no registration of the voltage .
在取样瞬间之间，没有电压的读数。
The approach we use for the former is similar to the one for linear sampled - data systems because the exact discrete - time model just coincides a state of the continuous - time plant at sampling instants
第六部分:首先研究可容许采样周期的上界t ’的存在性及其估计，指出t ’实际上是近似离散化闭环系统的一个奇异点