cān​kǎo​xì

frame of reference

Senses

参考系/ 參考系 cān​kǎo​xì frame of reference

A standard or object used as a baseline for measuring the position and motion of other objects; also refers more broadly to any standard used for comparison.

References

same_as 参考系/參考系 参照系/參照系
same_as 参考系/參考系 参照物/參照物
same_as 参照物/參照物 参考系/參考系