During lowering charge level with water spraying into the blast furnace, the gas is recovered and the charge level is judged by the blast volume not by special stock rod.

操作时采用空料线法(从炉顶打水)，回收高炉煤气，不安装特殊探尺，用风量判断料面行程。

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Martin Redrado, who is in charge of economic affairs at the foreign ministry, points out that Brazil recovered strongly after its turbulent devaluation of 1999, and inflation there remained low.

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