All those will be heuristic and instructive for the further renovation of drawworks and disk brakes structures and improvement of rig performance and quality.
英
美
- 提出了絞車(chē)和自動(dòng)送鉆改進(jìn)意見(jiàn)和科研攻關(guān)重點(diǎn),對今后鉆機更新時(shí)絞車(chē)和盤(pán)式剎車(chē)結構改進(jìn)、提高國產(chǎn)鉆機的性能和質(zhì)量,具有一定的啟發(fā)和指導作用。
