例句與造句

1. application of gps-rtk bathymetric survey technique without tidal observation in yangtze estuary channel regulation project
   無(wú)驗(yàn)潮水深測(cè)量技術(shù)在長(zhǎng)江口航道治理工程中的應(yīng)用
2. It's difficult to find tidal observations in a sentence. 用tidal observations造句挺難的