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| 产品生命周期 | |||
| 产品寿命周期 (包括：导入(introduction)、成长 (growth)、成熟(maturity)、饱和 (saturation)、衰退 (decline)) | |||
| 产品寿命周期; 产品寿命 | |||
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| 产品寿命周期 | |||
| life cycle of product: 7 phrases in 4 subjects |
| Ecology | 1 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Project management | 3 |
| Technology | 1 |
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