| 1. | The work of these watches and clocks are all home-produced .
这些钟表里的机件全部都是国产的。 |
| 2. | The works of these watches are all home - produced and wear well
这些手表的机件均系国产，耐磨性好。 |
| 3. | The works of these watches are all home - produced and wear well
这些手表的零件都是国内制造的，性能良好。 |
| 4. | Status of china ' s iron ore resource and measures to ensure continuous supply of home - produced iron ore
我国铁矿资源形势与可持续供给的对策建议 |
| 5. | Import creates competition for home - produced goods ; exporting gives a manufacturer a larger market for his products , so helping to reduce the unit cost
进口促使国内产品提高竞争力；出口为制造商提供更大的市场，进而降低单位成本。 |
| 6. | So as an important pipeline construction machine , pipe crane is paid more attention . but existing home - produced pipe cranes are mostly imitative , and short of credible theoretic design calculation . therefore , their mechanical quality , performance and weight - hoisting are difficult to meet the demands of pipeline construction
但是国内现有的吊管机多是测绘仿形生产，缺乏可靠的理论设计计算，所以其机械质量、性能、吊重等难以满足管道建设的需要。 |
| 7. | Therefore , based on a thorough study on the theory of technology evolution in triz , ten patterns of evolution are presented and twenty - three paths of evolution are summarized . the evolution process of butterfly valve ' s seal structure is analyzed based on the background of the home - produced butterfly valve ' s technology
为此，在对triz中技术进化理论进行了深入研究的基础上，提出了十种进化模式，总结了23条进化路线，并以国内的蝶阀技术现状为背景，研究了蝶阀密封结构的进化过程，提出了改进方案。 |
