佛教三界之一。三种无为解脱之对治道。（一）断界，即断除九结中除贪以外之其余八种烦恼，或断除无明结。（二）离界，谓断离贪烦恼或断除爱结。（三）灭界，谓断灭有漏善及诸有为、无覆无记等烦恼。
一种两侧以倾向相对的正断层为界的相对低位的断块。
A relatively low-standing fault block bounded by opposing normal faults.
白虎油田位于越南东南兰龙盆地早新生界中央隆起带基岩断块，以花岗岩和花岗闪长岩为主。
White Tiger oilfield, located on a faulted basement block along the Lower Cenozoic central uplift belt in Cuu long basin, Vietnam, is mainly composed of granite and granodiorite.
负反转构造和断块型古潜山普遍存在于东营凹陷通王地区古生界之中。
Negative reversal structure and the fault - block type buried hills are very common in Palaeozoic group in Tongwang area of Dongying Sag.
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