“预约保险单”的概念、定义、翻译、参考文献-科学参考

单词	预约保险单
释义	预约保险单 Encyclopedia 经济学保险单释 open policy预约保险单保险双方对预计的保险标的在期初签发的保险单。约定承保条件，并于期末根据实际情况调整保险合同。又称开口保单、敞口保单。
随便看	grass swale grass tetany grasstoots committee of Chinese Communist Youth League grass variety Grass Variety Approval Committee of China grass variety degradation grass variety selection grass variety stability grass variety uniformity grass weed grassy weed grate grate discharge ball mill grated－bottom intake grate-kiln pelletizing process graticle graticule Gratien Lazare Pognon grating grating array grating constant grating device grating diffraction measurement grating dividing head grating efficiency

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。