附录：文献翻译一Status of the development of solid garageStereo garage is the storage which is used for automatic parking and scientific storage of kinds of auto-mobile . As the quantity of urban automobile has increased continuously in nowadays, the hard-to-park problem has become a common phenomenon. Mechanical stereo garage can use land resource sufficiently and bring space advantage into play , and maximize the number of parking cars . It has become an important way for static traffic problem of cities. The issue studies the type mechanical parking system which named up-down and translation stereo garage, and regards of the two factors of manufacture and operational efficiency synthetically.On the basis of investigation on current situation and developing trend of garage in domestic and aboard , we choose three-layer and three-formulistic garage structure as the research model . Accoding to the form of the dragging-forms of multi player up-dowm and translation ear-base , it is mode of three pares: part of ear-base strucrue part of drving-framework and part of control systerm. The paper simply introduces main structure and characterisics of garage and also give a short introduction to its control system. The finite element reliability cheaking of steel structure of garage is utilized according to the operation princiole of up-down ang translation stereo garage , the mechanics was used to comprehensively analyze the up-down and translation stereo garage , the mechanics was used to comprehensively analyze the up-down and translation tereo garage garage .Including intension of the framework structure axes ,etc. The paper adopt PLC as control system in designing the up-down and translation stereo garage , PLC softwore of OMRON company was used to weave the program of control system , through debugging running. The result proved that adopted PLC as control system is simple and easy to realize . The chaaracterristic of stabilization , credibility ,speediness and high capability made the control system very perfection of mechanical parking systems-garageal safety requiremebnt and the facts of the up-down and translation stereal garage the paper introduced some safety technique which was used in the up-down and translation stereal garage . This can ensure zbsolute safety for car and make the whole stereo garage safety and running smooth .On the base of the project Opitimal design of the mechanisms in the stereoscopic garage , some mechanisms in the lift park garage has been designed optimally . At the firest , we estabilished the running mode and the structure of the mechanisms adapted to the running mode . And then , we chose the immobile comb as the parking space and the steel structure framework as support , the optimal design on the two mechanisms was carried through . The optimal design on the immobile comb and the steel structure framework was carried through with augmented multipliers method . At the end , the result of the optimal design is that the immobile comb will be more reasonable and decreased the whole weighet of the steel structure framework , and the weight of the steel structure framework become more light .With the rapid deveiopment of large city , the settlement of the difficult of parking of large city has already reached the very urgent stage . In the city center where every inch of land is precious , especially the area which such vehicles as the hotel , marked , shopping center location , etc . Dr.eye: concentrate ,can only develop to the sky , to underground , so has bulit and already to a great deal of three-dimensional garage parkings reached the essential stage , at the time there are maney advatages too in the three-dimesional garage parking .First , economize the sopace . Generally speaking , its floor space is about 1/21/25 of the level parking area , machinery type three-dimensional .The garage can both be insrtalled with ground underground , the greatest advantage can fully utilize the small area to develop to the high altitude , try ones best to srore more wehicles , the place that the land resource in short supply , the vechicle is big in capacity to park in the way best . For example , are most suitable for using vertical circulation on the limited residential quarter ground on the space three-dimensional garage of thr type . 8 storeys of every groups of this kind of garage , that is to say , only parked the three-dimensional garage bulit up on the area of a kind car and park 8 cars originally .Second , automation is cintralled , easy to use . The three-dimensional garage automatic degree of garage parking is very high , can hosit or lower the rotatory type , for example ,district residents come off duty and park , so long as according to the number that the brass-wind instrument is corresponding with the parking stall , this parking stall will be rotated and landed to the ground , ,after the car owner parks the good vehicle , and then according to the