To deal with the vacant data , this system use a sorting algorithm of datamining which is a very popular technique 数据挖掘技术是当前较流行的热门技术，在这个系统运用其中的一种分类算法来实现对采集数据空缺值的处理。
数据: data; record; information空缺: vacancy; opening数据空间: data space; date space; tcpipds1空缺: vacant position; vacancy 递补空缺 fill (up) a vacancy by election; 待遇优厚的打字员和职员的空缺 good vacancy for typists and clerks; 内阁中的空缺 a vacancy in the cabinet吃空缺: pay the payroll空缺的: vacant空缺额: vacancies空缺集: vacancy set空缺率: vacancy rate空职；空缺: vacancy占据空间的城市: spatial town职业空缺，岗位空缺: job vacancy查寻空缺: tracked vacancies post job opportunities internally and externally递补空缺: fill a vacancy by election高空缺氧: altitude anoxia; altitude hypoxia; anoxia due to high altitude高空缺氧症: altitude anoxia即时空缺: immediate vacancy晶格空缺: lattice vacancy壳型空缺: shell vacancy空缺策略: default strategy空缺的职位: opening; vacant job; vacant jog空缺管理股: vacancy management unit空缺时期: vacation空职，职位空缺: job vacancy临时空缺: casual vacancy
