This book continues the series of English translations of the revised and augmented volumes in the Course of Theoretical Physics， which have been appearing in Russian since 1973.The English translations of volumes 2 (Classical Theory of Fields) and 3 (Quantum Mechanics) will shortly both have been published.Unlike those two， the present volume 1 has not required any considerable revision， as is to be expected in such a well- established branch of theoretical physics as mechanics is.Only the final sections， on adiabatic invariants， have been revised by L.P.Pitaevskil and myself……
　　此书为英文版！