例句與造句

1. Systemic research including the influence of the crown ether ring ' s symmetry , the size and the conformation on the liquid - crystalline behavior have been done in this paper . the synthesis way and method were improved . from the experimental results , it was found that : 1 , compounds 2 , 4 , 16 , 17 and 18 have liquid crystal properties
   優(yōu)化和改進了合成路線及方法，對席夫堿型液晶冠醚，因取代基的大小、冠醚環(huán)的大小和冠醚環(huán)的對稱性以及不同結(jié)構(gòu)的順反構(gòu)型對液晶性能的影響等諸方面進行了較系統(tǒng)的研究，取得了一系列具有規(guī)律性的結(jié)果。
2. It's difficult to find synthesis way in a sentence. 用synthesis way造句挺難的