The ore and surrounding rock in Luoyang mining area of Panluo Iron Mine are of stable type, where open stoping method is adopted.
潘洛铁矿洛阳采区矿石及围岩均属稳固类型，开采方法采用空场法。
The stable type space is defined and a characteristic property on exponential stability of C_0 semigroups is given in this kind of spaces.
本文给出稳定型空间的定义，给出C_0半群在这类空间上指数稳定的充要条件。
The stable type space is defined and a characteristic property on exponential stability of C_0 semigroups is given in this kind of spaces.
本文给出稳定型空间的定义，给出C_0半群在这类空间上指数稳定的充要条件。
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