differential subsidy meaning in English

差价补贴

In the aspect of supporting merchant marine , the u . s . experienced a process from " little support " to " full support " , and at last to " full and thorough support " . the u . s . has adopted policies of construction differential subsidy , operating differential subsidy , cabotage reservation , cargo reservation , preferential taxes , and financing bond by the government , and many other forms
在商船队扶持方面，美国经历了由不重视扶持到全面扶持、再从全面扶持到将扶持贯彻到底的过程；先后采用了造船补贴政策、营运补贴政策、沿海运输权保留政策、货载保留政策、税收优惠政策、以及由政府提供融资担保等各种形式的扶持方法。