农业产业结构是指农业中各产业的构成比例。
The industrial structure of agriculture is the composing proportion of the each industry in agriculture.
第一产业是指农业、林业、畜牧业、渔业和农林牧渔服务业。
Primary industry refers to agriculture, forestry, animal husbandry and fishery and services in support of these industries.
其大义是，指农业或渔业培养产品在离场时减去营销成本后的净值。
The farm gate value of a cultivated product in agriculture or aquaculture is the net value of the product when it leaves the farm, after marketing costs have been subtracted.
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