An abacus is also a counting machine, using our brain and our fingers. 算盤(pán)也是一臺計數器，用我們的頭腦和手指來(lái)操作。
The length of the finished sheet is measured by the electronic measurement instrument or mechanical measurement instrument. 出板長(cháng)度有電子計量器械或機械計量器兩種儀器計量。
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