economical and practical
经济实用(economical and practical), 此释义来源于网络辞典。
economic and practical
... economic and practical 经济实用 economical and practical 经济实惠; 经济实用 economically practical 经济上可行的; 经济上切实可行的 ...
Economic Use Method
Science for Economy ; Science fEconomy
Economical and Practical Type ; Spectraflect