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| 1. | electric spark forming |
| 电火花成形加工 |
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| 2. | electric spark drill |
| 电火花钻井 |
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| 3. | electric spark drilling |
| 电火花穿孔 |
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| 4. | electric spark processing |
| 电火花加工 |
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| 5. | electric spark machinery |
| 电火花加工机床 |
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| 6. | electric spark ignitor |
| 电火花发火机 |
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| 7. | resonant electric spark |
| 共鸣火花 |
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| 8. | electric spark igniter |
| 电火花点火器 |
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| 9. | an electric spark |
| 电火花 |
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| 10. | electric spark sintering |
| 电火花烧结 |
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