The lifting rigging Command job (new version)(Chinese Edition)

Paperback. Pub Date: 2011 Pages: 275 Language: Chinese in Publisher: Meteorological Press lifting rigging (new version) includes the basics of lifting machinery command operations. the calculation method of the mass of the object. the mechanics of basic knowledge. Contents: Preface Chapter lifting machinery basic knowledge first section of second crane lifting operations overview section III of the basic types of the basic structure of the basic parameters of the fourth quarter of the crane crane Section V crane safety guards Section IV of the calculation of Section III of the second volume of the calculation of the mass of the object of the first area of ??the calculation method of the Chapter mass of the object calculated the circumference aliquot string length calculated estimate of the mass of the object of the application of Section VI Section V trigonometric functions ...