...在12c之前没办法在部分或指定的分区上创建索引,在12c 版本中引入了Partial Indexes(部分索引), 无论是global还是local都可以有选择性的对部分分区创建索引,这可能是在12c分区新特性中最出色的一个.
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The comprehensive index of lake eutrophication can be calculated in the aid of the general fuzzy contrast weighting for the partial indexes.
并提出用广义模糊对比因子赋权新方法计算富营养化综合指数。
Partial physiological and biochemical indexes of the 9 strains of bacteria are measured. 7 strains of bacteria are Bacillus', 2 strains of bacteria are Micrococcus.
采用多种生理生化指标对高效复合菌剂中的9株细菌进行初步的鉴定，共有7株芽孢杆菌属和2株微球菌属的菌株。
Objective To compare and analyze the performance indexes and the imaging quality of the home and imported X-ray machines through testing their partial imaging performance parameters.
目的通过测试国产和进口X线机部分成像性能参数，对国产和进口X线机性能指标及成像质量进行比较与分析。
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