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- 清关clear customs
- 清pure
- 关(surname)
- 开关power switch
- 清空empty
- 高清high definition
- 费率rate
- 清关货场clearance depot
- 不良率fraction defective
- 网关gateway
- 容积率volume fraction
- 过关pass a barrier
- 倍率multiplying power
- 不清unclear
- 电导率electrical conductivity
- 看清outguess
- 中关second trial
- 市盈率p/e (price/earning) ratio
- 报废率scrappage
- 清零to clear