major producing area的意思|示意

The paper applied the information diffusion model of non-parametric estimation to project the level of productivity risks for cereals, rice, corn and wheat at major grain-producing area.

本文采用非参数估计的信息扩散模型测算了我国粮食主产区水稻、玉米、小麦和棉花产量损失风险水平。

Heilongjiang Province is an important major grain-producing area, and the per capita share of cultivated land in China takes the first place.

黑龙江省是我国重要的粮食主产区，耕地面积和人均占有量都居我国首位。

Henan province is the major grain producing area of China, as well as one of main traditional flower producing areas.

摘要河南省是我国重要的粮食主产省，也是我国重要的花卉传统生产区域之一。

The soft rock area is a major sediments-producing area resulting from bedrock erosion in the middle valley of the Yellow River.

砒砂岩区是黄河中游集中的基岩产沙区，强烈的岩土侵蚀与砒砂岩的岩性密切相关。

Soybean, as the major crop in northeastern China, is the main source of peasants' income. According to an investigation made in producing area, price change has a great impact on peasants' revenue.

大豆作为我国东北产区主要农作物，是农民收入的重要来源，根据对产区的调查，大豆纯收入一般占农户纯收入的五分之之，大豆价格的变化对农民的收入影响极大。