直接需求 meaning in English

direct demand

Premature optimizations , support for possible future features , and design patterns that don t support your immediate requirements can waste too much effort
不成熟的优化、对可能的未来特性的支持以及不支持您的直接需求的设计模式会浪费太多精力。
If you are comfortable with the acceptance and availability of jdom , and if you don t have a direct need to move java code or programmers to other languages , jdom is a good option to explore
如果您对jdom的接受性和可用性已经满足，并且如果您也没有将java代码和程序员转移到其它语言的直接需求， jdom是个值得探索的好选择。
Demands for spatial index directly come from spatial methods . in spatial database , spatial methods are implemented in two steps : first is filter step , in which spatial object ' s number is reduced through spatial index . second is refinement step , in which spatial objects resulted from filter step are subjected to exacted computation
空间索引的直接需求来自于大量空间对象上的空间运算，本文认为在空间数据库中空间运算应该分两步进行：第一步是筛选步骤，通过空间索引缩小进行比较的空间对象的个数；第二步为细化步骤，对从第一步中筛选出的空间对象进行精确的空间运算操作。