The distribution coefficientD indicated: Ethyl acetate was the most suitable extractant for CGA s purification.
萃取分配系数D测定结果表明， 醋酸乙酯是纯化绿原酸的适用溶剂。
2
D-optimal test scheme was presented for calibrating second-order coefficient K2 of PIGA (Pendulous Integrating Gyro Accelerometer) error model on a precision centrifuge with counter-rotating platform.
The coefficient curves of R&D on technical progress show oblique "W" type, but on the whole, the economic benefits generated by R&D will get better and better.