?????? ???????“???”????????????

????:?????:??????v

??12??????????18?? (?? ????????????)???,??“????”??18???

???????????????18??16??13??????,?19?,?????7?????9???????9???????10???????7??8????????????9??,?7?????????9??????????9?????10???????????6???????7??????????????????8?9????????????????,??8?????9????10??11???7?????8??????????????9?????????10?????

??,???????????,??18????????????19??????????????,?4.0??5.3??,?3.5????4.8??,?????????????????????????????3.0?????4.5?;?????????????????????2.3?3.3??;???????1.8??????2.8??

???12?,????????????,??,???

????????????????????,??,?????;??,??(AIS)??????????,??,??,??????????,???????,????????(??) ???:???????