单词	casing head
释义	casing head 套管头
随便看	coherent carrier system coherent cascade of photon coherent collision coherent communication channel coherent communication system coherent completion coherent condition coherent control coherent cross-section coherent cross section coherent crosstalk coherent demodulation coherent derived unit coherent derived unit of measurement coherent detection coherent detector coherent digital communication coherent disturbance coherent drop model coherent echo coherent echo modulation and detection coherent effect coherent elastic scattering coherent elastic scattering of radiation coherent elastic scattering of rediation mgwn mgxs mgxy mgycdgyz mgyd mgyj mgys mgyy mgzd mgzh cover girl cowboy cox CPU CQ cracker craft cranberry crane crank