Conversion to the metric system of weights and measures; metrification.

公制化测量重量和度量时采用公制；

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The metric system of weights and measures shall be introduced in this contract unless otherwise instructed by the Purchaser.

合同中应采用公制计量单位，除非买方另有要求。

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Attached to the users arm, they employ a system of weights and magnets which provide an electric current to top up charge in a storage battery.

当用户将它戴在手臂上时，它就会利用重量与磁能系统向蓄电池发电。

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Our wrestlers are used to wrestling a wide range of weights and ages of, but the Breton system categorises age and weight to ensure that all bouts are well matched.

BBC: Cumberland wrestling round-up

Poland objects mainly to a proposed new voting system for national governments that would reduce the generous weights promised to Poland and Spain under the Nice treaty of 2000.

ECONOMIST: Polish politics