l and a造句

• An analysis of chemical composition of physalis alkekengi l and a study of its utilization value
  酸浆的化学成分分析及其利用价值的研究
• Piecewise n ( ? ) ther type theorems on the partitions of ? l and a star region . 2 . in this paper , the theory of the so - called " linear series " of sets of places on the piecewise algebraic curve is estabilished and the singular cycle is put into the linear series
  2 ：本文将奇异循环纳入分片代数曲线的线性列中，建立了由分片代数曲线的支组所构成的“线性列”理论，这一理论是相应代数曲线“线性列”理论( [ 71 ] )的推广。