缺值 meaning in English

missing data
missing value

T . media cv . hicksii seedling hi natural light has higher content of bound - water and water saturation deficit , bigger transpiration rate , and lower relative water content , stronger ability of fighting loss water than that in shading light intensity conditions
自然光照条件下生长的曼地亚红豆杉幼苗蒸腾速率较大，叶片相对含水量较低，水分饱和亏缺值较大，束缚水含量较高，抗脱水能力最强。
This paper also studies in detail the problem of building concept lattice , and two efficient algorithms are developed . moreover , several extended model of concept lattice are presented to handle the problems in data processing , such as the missing value and the structured domain of attribute
此外，本文还对概念格的快速生成算法进行了深入的研究，提出了一些高效的算法，文章的最后提出了几种概念格扩展模型，处理了数据中可能出现的缺值和结构化属性值域的问题。