0<t<t10<\mathrm{t}<\mathrm{t}_{1}0<t<t1
t1 ও t2t_{1} \text { ও } t_{2}t1 ও t2 মূহুর্তে
t1<t<t2\mathrm{t}_{1}<\mathrm{t}<\mathrm{t}_{2}t1<t<t2
0<t<t1 andt2<t<t30<t<t_{1} \text { and} t_{2}<t<t_{3}0<t<t1 andt2<t<t3
