sign digit

基本解释

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。
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。
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。

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
Though 2012 was a comparatively difficult year for the mainland China luxury market, which only mustered single-digit growth, purchases by Chinese tourist-shoppers outside of China indicated that demand has shown little sign of diminishing.
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