例句與造句

1. In the thesis , compatible data storage fashion and data structure for a large - scale 3d scene is discussed firstly . then the process technique for dem , spatial object geometry data , texture image data and scene metadata are discussed in turn . finally , a new nested index , scene pyramid + sub scene regular dividing quad - tree is brought forward , which consumes less memory and reduces the complexity of spatial data query
   本文首先確定了適用于大規(guī)模三維場景可視化的數(shù)據(jù)結(jié)構(gòu)和存儲方式；然后分別針對dem數(shù)據(jù)、地物模型數(shù)據(jù)、紋理影像數(shù)據(jù)及場景元數(shù)據(jù)論述了分割與lod處理的方法；最后給出場景金字塔與子場景規(guī)則分割四叉樹兩套索引的建立以及具體應用策略，該索引機制減少了內(nèi)存消耗，降低了數(shù)據(jù)查找的復雜性。
2. It's difficult to find object geometry in a sentence. 用object geometry造句挺難的