container crane
7.Abstract: For quayside gantry crane which consists of gantry grab unloader and quayside container crane, the main technical progresses, such as application of differential theory to trolley, application of full AC drivers, automatic assistant operation system, and more and more application of full machinery trolley and monogirder boom are presented briefly in this paper.
10.By means of building the product definition model and environment definition one, this paper also analyzes the interaction between two models and puts forward the way of how to build the container crane parameter calculation system by VB and ACCESS software programming, with product definition and environment definition as input data and object response as output data and their mapping relation.

