The transformation formula of critical markup rate and critical gross profit rate is given, and their equivalency for the stability study is illustrated.
给出了临界加价率同临界毛利率的转换公式，说明他们对稳定性研究的等效性。
2
The accuracy of Orthometric Height will be directly affected by ellipsoidal height precision during GPS height transformation, therefore, the detection of gross error is very important.