- step-by-step drilling
- 逐步: step by step; progressively; ...
- 钻: drill; auger
- 法: law
- 钻法: drilling
- 逐步: 1.(一步一步地) step by step; progressively; gradually; proceed orderly 逐步放开 gradually relax control; 逐步积累的渐进过程 gradual, cumulative process; 逐步加以解决 settle sth. step by step; 逐步降低生产成本 progressively reduce the production cost; 战争逐步升级 escalation of war; 工作正在逐步开展。 our work is progressing gradually.2.[数学] successive steps; 逐步升级 escalation; 逐步淘汰法 sieve method; successive sweep method; 逐步推广 gradual popularization
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