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| 杂散电流试验对电火工品施加规定数量、频率、幅度和宽度的直流电流脉冲，考核电火工品对杂散电流安全性的试验 | |||
| stray current test: 2 phrases in 1 subject |
| Explosives and Explosive Ordnance Disposal | 2 |
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