词汇	total normal force
释义	total normal force 总法向力,总正交力
随便看	compulsory pay compulsory payment compulsory performance compulsory physical education compulsory piano course compulsory pilot compulsory pilotage compulsory pilotage legislation compulsory Pingpong course Compulsory pleadings Compulsory plus optional compulsory plysical training of teen-agers compulsory portion compulsory power compulsory premarital checkup compulsory premarital check-ups compulsory prepayment of charges compulsory principle compulsory principle of law Compulsory Private Provident Fund compulsory process compulsory processes compulsory product certification compulsory prosecution compulsory provisign