[名词解释] 高强螺栓

巩膜最薄处位于（）. ["角巩膜缘","赤道部","与视神经连接处","眼外肌附着处","筛板部"] 滚搓法塑限试验，两次平行测定允许差值为：高液限土小于或等于（）。 ["0.5％","1％","1.5％","2％"] 冷拔钢丝 角膜组织再生能力强，对细菌亦有较强抵抗力的是（）. ["上皮细胞层","前弹力层","基质层","后弹力层","内皮细胞层"] 孔隙比 高强螺栓