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21. | conveyer pawl shifter |
| 输送机棘爪开关 |
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22. | friction ratchet |
| 摩擦棘轮机构 |
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23. | ratchet writing |
| 棘齿写入法 |
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24. | unlocking click yoke |
| 释放棘爪杆 |
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25. | hand brake lever pawl rod |
| 手闸棘爪杆 |
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26. | conveyer pawl casing cover |
| 输送机棘爪盖 |
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27. | rack and pawl jack |
| 齿条棘爪千斤顶 |
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28. | coupling spring click |
| 连接簧片棘爪 |
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29. | ratchetting latch |
| 棘爪锁紧装置 |
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30. | power wheel click |
| 条轮棘爪 |
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