bearing bearing of pile
桩的承载力
聚对苯二甲酸乙二醇酯(PET)
聚对苯二甲酸乙二醇酯
LowerRoller Cone BitRoller Cone Biting Cost
outer cone ring in a double cone synchronizer
sense cone or sense peg sense cone
(Nearly) differential charac-teristic set
1-Oil Differential Switch
1-order ordinary differential matrix equation for the state vector
2 5th order differential voltammetry
2e triple differential cross sections
2K-H differential gear trains
2n+1-order odinary differential equation
2nd-order differential linear sweep voltammetry