The value of currencies was meant to be regulated by supply and demand the market mechanism .
货币的价值应由供求关系市场机制来决定。
2
The graft yield value can be regulated by the concentration of monomer.
接枝率的大小可以用单体浓度来调节;
3
The fan was usually controlled by hand in the small cement grinding station; the required air of the bill was regulated by adjusting the fan opening value, which wasted a mount of electric energy.