YELLOW SEA， M/V ZHAOSHANG271 TRIAL VOYAGE FROM 150000UTC TO 210900UTC AUG. IN AREA BOUNDED BY THE LINES JOINING.37-20N 123-15E、37-20N 123-30E、36-35N 123-30E、36-35N 123-15E.CAUTION ADVISED.SHANDONG MSA CHINA
