基本解釋[能源科學技術]鉆頭給進機構英漢例句雙語例句Start collaring with reduced throttle to the impact mechanism and feeding, let the bit work its way slightly into the rock.開孔時，應采用最小的沖擊和推進力，使鉆頭平穩(wěn)地進入巖層。bit feeding mechanism更多例句專業(yè)釋義能源科學技術鉆頭給進機構