LESSON ONE TEXT MECHANISMS LESSON TWO TEXT STRESS AND STRAIN LESSON THREE TEXT MECHANICAL PROPERTIES OF METALS LESSON FOUR TEXT HARDENING AND TEMPERING LESSON FIVE TEXT GEAR LESSON SIX TEXT CAMS LESSON SEVEN TEXT SCREW THREAD LESSON EIGHT TEXT THE LATHE LESSON NINE TEXT MILLING MACHINES LESSON TEN TEXT HYDRAULIC SYSTEM LESSON ELEVEN TEXT MOBILE CRANES LESSON TWELVE TEXT FORK LIFT TRUCKS LESSON THIRTEEN TEXT COMPUTER-INTEGRATED MANUFACTURING LESSON FOURTEEN TEXT COMPUTERS IN MECHANICAL ENGINEERING LESSON FIFTEEN TEXT NUMERICAL CONTROL APPLICATIONS LESSON SIXTEEN TEXT FLEXIBLE MACHINING SYSTEM LESSON SEVENTEEN TEXT SYSTEM INTEGRATION IN THE MANUFACTURING INDUSTRY LESSON EIGHTEEN TEXT METHODS OF SIMULATION 附录一 数字大小、数的增减、倍数表示法 附录二 分数、小数、百分数的读法 附录三 正反比的主要表示法 附录四 课文译文 USEFUL VOCABULARY 常用词汇表