calendrics造句

• A research on astronomical and calendric achievements of liao dynasty
  辽代天文历算成就浅论
• Ancient china made unique contributions to many areas of science including astronomy, calendric system, geography, mathematics, agriculture, medicine and the humanities
  古代中国在天文历法、地学、数学、农学、医学和人文科学的许多领域，都作出过独特的贡献。
• This paper classifies production style in pre-qin into four stages, according to the main problems and its transformation in production development, which includes : 1 . product stage; 2 . soil stage; 3 . climate and calendric stage; 4 . irrigating agriculture stage
  摘要先秦农业生产方式可划分为依次递进的四个阶段，即品种阶段、土壤阶段、气候历法阶段和灌溉农业阶段。