length of path信息详情
程长
length of stay───停留时间；住院时间；滞留时间
length───n.长度，长；时间的长短；<语>音长
the path of───......的道路；......的路线
a length of───一段
path───n.道路；小路；轨道
span length───杆间距离，跨度距离；跨度距离；杆间距离
equal length───[统计]等长；[统计] 等长
back length───后面长度
dress length───衫长
metadata cache contains the full path names of directories and files as keys and metadata (e.g. file length, last modification date, and whether the key is a file or a directory) as values.───元数据缓存器将目录和文件的路径名称保存为键，将元数据保存为值（如文件长度、最后修改时间、标记该条目是文件还是目录等）。
Manage the length of the path environment variable.───管理路径环境变量的长度。
The Saturn hexagon seems to represent the strange rigid path of a jet stream, with each of the six sides being one Earth diameter in length.───土星上的六角形云团像是激流形成的固定图案，每条边的长度与地球的直径相当。
In another sense, the average speed of a body means the total length of path covered, divided by the elapsed time.───另一种含义是物体的平均速率，即物体运动所经过的全部路程除以所经过的时间。
The resulting length of path is greatly increased, with consequent increase in resistance.───结果路径长度大大增长，电阻增大。
The resulting length of path is greatly increased, with consequent increase in resistance.
Based on X-SQL query language, we present a path expression optimization algorithm, which reduces the length of path expression efficiently and improves the query efficency.