A fracture or crack in a rock mass along which no appreciable movement has occurred.
裂缝,裂口岩石块中的碎片或缝隙,在其周围未发生过可被觉察到的运动
appreciable详细解释
ap.pre.cia.ble adj.(形容词)Possible to estimate, measure, or perceive:可估计的,可测量的,可察觉到的:例句:appreciable changes in temperature.See Synonyms at perceptible 可察觉到的温度上的变化参见 perceptible 【引伸】 appre.ciably adv.(副词)