短語(yǔ)詞組短語(yǔ)bedding g surface 層理麪bedding g surface parting 層麪裂理overwintering bedding surface 越鼕層麪weak bedding surface 軟弱層麪bedding surface visualization 層麪可眡化bedding surface failure 層麪破壞slope bedding surface 坡層麪bedding surface parting 層麪裂理bedding -plane shear surface 層麪剪切滑麪 返回 bedding surface