yield area中文什么意思

例句与用法

1. bo xing county is one of the main yielding areas of grain, cotton, and vegetables as well as the demonstration base of green vegetables
   博兴县是山东省主要的粮食、棉花和蔬菜生产基地，无公害蔬菜示范基地。
2. this indicates that adoption of advanced comprehensive science and technology will contribute to obtaining higher yield of maize in guangxi where is always the lowest maize yield area in china
   这表明采用先进的综合科学技术对获得广西玉米高产大有贡献，广西总是中国玉米产量最低的地区。
3. with respect to the closed-end fund market and the stock market, we find that the efficient frontier of the fund market is superior to the stock market in the low yield area; this has great significance to the investment of the chinese insurer, which is highly regulated in their investment activity because of the high volatility of the chinese stock market
   指出深圳市场有效边界高收益、高风险的特色；而基金市场的有效边界在低收益区间明显优于股票市场，表明目前阶段对保险公司的投资限制对于处于发展初期的我国保险业投资的特殊重要意义。
4. that the arched roadway with the ratio of 0.2 between arch rise and roadway width is substituted fur rectangular roadway can obviously improve the stress state of roadway surrounding rocks, reduce the deformation and the plastic yield area of roadway surrounding rocks, greatly strengthening the stability of roadway surrounding rocks
   采用矢跨比为0.2的圆弧拱巷道代替矩形巷道，可显著改善巷道围岩应力状况，减小巷道围岩变形量，减少围岩塑性屈服区域，加强巷道围岩的稳定性。