multi-period fracture  多期次裂缝

the period of tectonic fracture forming  裂缝形成期

supra condylar fracture and intercondylar fracture  股骨髁上髁间骨折

Carboniferous Period—Permian Period  石炭－二叠系

Demand charge shift from the on-peak period to the off-peak period  移峰填谷

middle_period and last_period state_mines  中晚期国有矿山

Paleogeng Period-Neogene Period  古近—新近纪

period shut-down (period trip)  周期保护停堆

period-to-period value changes  各期间价值变化

Spring and Autumn period and Warring States period  春秋战国时期

the Spring and Autumn Period and the Period of War  春秋战国

Ⅰ-Ⅱ fracture  Ⅰ-Ⅱ型裂纹

Ⅰ-Ⅱ mixed mode fracture  Ⅰ-Ⅱ复合型裂纹

3D fracture  三维裂缝

3D fracture network seepage  三维裂隙网络渗流

3D surface fracture  三维表面裂隙

Ability of neck of femur against fracture  股骨颈抗骨折能力

Abnormal Fracture  异常断口

Abnormal fracture surface  异常断口