差五分十一点 five to eleven

一分之差 One point

零点差一分 One minute to Zero

一阶差分方程 [数] first order difference equation ; first difference equation

一分不差 to the minute ; be punctual to the minute

一次差分 [数] first difference

我差他一分 I sent him ; I sent him a pm ; I sent him a point

一阶差分法 first difference method ; method of first difference

一阶差分变换 [数] first difference transformation

一阶差分GMM first differenced GMM