开拓

开拓 [kāi tuò]

1. ■ （开辟; 扩展） open up; reclaim; extension; open-out prolongation; baring:

开拓城乡市场 exploit the urban and rural markets;

开拓荒地 reclaim wasteland;

开拓市场 develop [explore] markets;

为发展石油工业开拓一条道路 open up a path for the development of oil industry;

开拓中美两国的联系 start contacts between China and the United States;

中国移民在19世纪为开拓美洲大陆作出了贡献。 Chinese settlers helped tame the American continent during the 19th century.

2. ■ {矿} （采掘前修建巷道等工序总称） developing; opening

3. ■ {数} extension

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常用词组

1. ■ 开拓成本 {经} develop cost;

2. ■ 开拓方法 development method;

3. ■ 开拓工程 development engineering;

4. ■ 开拓进尺{煤矿} tunnelling footage;

5. ■ 开拓矿量 developed ore reserve;

6. ■ 开拓矿石 {采矿} development rock;

7. ■ 开拓煤量 developed coal reserve;

8. ■ 开拓水道 {航海} open lead;

9. ■ 开拓平巷 development drift;

10. ■ 开拓巷道 development working;

11. ■ 开拓钻孔 {采矿} development drilling;

12. ■ 开拓子 extensor