波尔多液是一种广谱、持效、保护性杀菌剂,可用于防治烟草不同生育期常见的多种病害,如烟草炭疽病、猝倒病、野火病、角斑病、赤星病等.研究了波尔多液在烟草生产中的施用效果,为波尔多液在烟草生产中的更广泛推广提供依据.

This paper conducts simulation experimental research on channel navigation area using large-scale ships operation simulator,including the ships'danger under different wind,wave and flow conditions and safety appraisal result,time needed for entering and leaving port,and recommends the reasonable width of waterway,so as to provide reliable basis for engineering structural design and working-out of ship-operating regulations.