the action or process of something slipping or subsiding; the amount or extent of this
滑动,下沉;滑程,下沉幅度
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£16 million has been spent on cracks and slippage .已经在下沉堵漏上花了1,600 万英镑。
failure to meet a standard or deadline; the extent of this
不合标准;延误;延误程度
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slippage on any job will entail slippage on the overall project .任何一件事的延误都会影响整个计划进程。