“sight glass”的概念、定义、翻译、参考文献-科学参考

单词	sight glass
释义	sight glass Encyclopedia 工学〔其他辅助设备〕释 sight glass视液镜用于观察制冷机内部制冷剂状态的视镜。
随便看	closed composition closed cone closed contour closed convex function closed convex functional closed convex hull closed convex hypersurface closed convex set closed convex surface closed covering closed current closed curve closed-curve problem closed cycle closed cycle engine closed-cycle refrigerator closed differential closed differential field closed differential form closed differential relation closed disk closed domain closed drain system closed-easy-axis closed economy

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。