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通过对文献资料的分析，初步掌握了采动覆岩“三带”的破坏特征，离层产生的位置及条件。掌握了可用于注浆充填的覆岩离层，提出了在弯曲......

通过对白象山铁矿风井-470m水平F6断层水文地质的综合的分析，提出了复杂富水断层截水防渗综合治理技术，从而保证安全可靠通过复杂富......

Two experiments were carried out to study the grunting of sows during nursing and the sucking be-haviour of piglets. In ......