crestal是什么意思

水晶，水晶体，同crystal

crestal attenuation 脊部衰减
crestal culmination 脊顶
crestal development 顶部开发
crestal injection 外部注气; 顶部注气
crestal plane 脊面; [地质]脊面
crestal waterflood 顶部注水
crestal well 构造顶部井
attenuation 转录衰减; 稀薄化; 衰耗; 衰减; ....
crestal collapse fracture 背斜顶部的塌陷裂缝
crestal gas injection 顶部注气
crestal injection well 构造顶部注入井
working attenuation 工作衰减量
waveguide attenuation 波导衰减; [电磁]波导衰减
spheric attenuation 球面衰减
plant attenuation 被控对象振荡衰减
microwave attenuation 微波衰减
mass attenuation 质量衰减; 质量衰减
mismatch attenuation 失配衰减