Based on sign digit negabinary representation, the two step addition and one step subtraction of arbitrary length operands can be performed.

基于符号数字负二进制表达，提出了任意字长操作数的并行两步加法与一步减法。

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The extra digit obliged the national debt clock near New York's Times Square to move its dollar sign to make room.

位于纽约时代广场的国债钟也不得不挪掉美元符号，腾出空间来表达多出的数位。

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This will cause scarcely a ripple in the market, given Nokia's single-digit share, but is another sign that Symbian's decline may be more abrupt than Nokia has hinted.

考虑到诺基亚诺基亚公司个位数的市场份额，这难以导致市场的波动。但是这也标志着Symbian也许会比诺基亚公司所暗示的衰退的更突然。

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Nonetheless the lower figure was a sign that the central leadership now sees heedless double-digit growth as a threat to stability, not a guarantee of it.

ECONOMIST: Pedalling prosperity