You must be economical of your money and time (你必需节省你的金钱和时间。 )
We should be economical of our money and time 我们应该节省金钱和时间。
My new car is economical of fuel 我的新汽车节省燃料[不费油] 。
Manual operating hot water flow through the radiator to control the room temperature , its most economical of thermostatic radiator valve . available for : 3 / 4 " , 1 / 2 " / style : straight valve , angle valve 散热器手动调节阀,通过手动调节散热器的热水流量,以达到控制室内环境温度的目的,是最经济的散热器温控阀。规格及型号: 3 / 4 ” 、 1 / 2 ”型式:直型、角型。
Different scholars put forward different concepts . on the bases of them , the author expresses her own view on the concept . part five : the nature of being supplement and economical of criminal law requires criminal law to be restrained 其他学者将刑法的补充性或经济性等同于刑法谦抑性本身,笔者对此提出不同观点,刑法本身所具有的补充性、最后手段性、不完整性和经济性决定了刑法必须谦抑自我。