例句與造句

1. Application of digital level in erecting second - order level network of hangzhou city
   數(shù)字水準(zhǔn)儀在杭州市二等水準(zhǔn)網(wǎng)建立中的應(yīng)用
2. Wu , j . , c . m . tzon and s . g . lin ( 1996 ) , " second - order leveling by rapid static gps satellite surveying , " journal of the chinese institute of civil and hydraulic engineering , vol . 8 , no . 4 , pp . 677 - 683
   張奇、吳究（ 1995 ） ， ?空載立體合成口徑雷達(dá)影像于地表重建之研究? ，測(cè)量工程，第三十七卷，第二期，第19 - 31頁。
3. It's difficult to find second-order levelling in a sentence. 用second-order levelling造句挺難的