By analyzing the characteristicratio method of calculating underground pipeline depth, the relation between characteristicratio and pipeline depth was obtained.
通过对管线仪特征比值定深法的分析，获取了特征比值与管线深度变化的关系；
2
The obtained characteristicratio of mean-square radius of gyration and its temperature coefficients for the long Poly(dimethylsilylene)chains with side groups approach the asymptotic value of 2.
得到其长链分子的均方回转半径的特征比和温度系数分别趋向于稳定值2。
3
Excellent regulation characteristics: V-type valve has a similar inherent equal percentage flow characteristic and adjustable up to 300:1 ratio.