1、
a class of singular stochastic control problem with reflecting and absorbing barrier
带反射壁和吸收壁的随机控制问题研究
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2、
Completed with air absorbing type roller barrier folding system, it may work steadily at high speed.
横折部配有气吸附式滚筒栅栏叠机构可在高速下稳定工作。
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