“civil day”的概念、定义、翻译、参考文献-科学参考

单词	civil day
释义	civil day [`siv·ǝl `dā] ^ASTRONOMY A mean solar day beginning at midnight instead of at noon; may be based on either apparent solar time or mean solar time.
随便看	packet switching packet transmission pack hardening pack ice packing packing density packing fraction packing house packing house pitch packing index packing proximity packing radius packing ring packing routine pack rolling packsand packstone pack unit pack wall pactamycin pad pad deluge overpotential overpressure overprint

科学参考收录了103327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。