例句與造句

1. On the aspect of data index , the essential of spatial index was advanced based on database , and a spatial index method called the spatial grid index method was put forward based on two phases database query
   在數(shù)據(jù)索引方面，提出了基于數(shù)據(jù)庫(kù)的空間索引的實(shí)質(zhì)，對(duì)基于數(shù)據(jù)庫(kù)的空間索引作了一定的研究，提出了基于數(shù)據(jù)庫(kù)的sql兩階段查詢的空間網(wǎng)格索引機(jī)制。
2. It's difficult to find grid index in a sentence. 用grid index造句挺難的