Over time farmers came to rely heavily on broadly adapted, high-yield crops to the exclusion of varieties adapted to local conditions.
久而久之，农民严重依赖普遍适应性、高产的作物，而将那些适应本地环境的品种排除在外。
The result showed that the technology made rice yield increase over 13%, production cost decrease over 300 Yuan per ha. The high yield and benefit from rice production was finally gained.
实践证明，配套技术的应用，使水稻平均每公顷增产13%以上，生产成本减少300元以上，达到了高产高效。
The V-P-O catalyst for oxidation of n-butane to maleic anhydride was prepared. High yield of maleic anhydride was obtained over the catalyst under suitable reaction conditions.
研制的V - P - O型固定床丁烷氧化制顺酐催化剂，在一定的反应条件下，可得到较高的顺酐收率。
The synthesis method adopts the two-step reaction under microwave radiation, and has the advantages of high reaction speed, short reaction time, and the product yield over 75 percent.
本发明的合成法采用微波副射下的两步反应，反应速度快，反应时间短，产品收率超过75％。
This process was characterized by simple flow sheet, low pollution, high product yield over 80%, and high product purity over 99%.
此合成工艺流程简单、污染小，产品收率大于80%，提纯后的产品纯度大于99%。
This process has many advantages over the traditional process, such as high yield, high content, high selectivity and low cost in the process. It opens up broad prospects for commercialization.
该工艺与传统工艺相比，具有收率高，含量高，选择性高，成本低等优点，具有广阔的工业前景。
The conversion of Sudanese high TAN crude oil is very high over ZC-7300 catalyst, but the distribution of products is not very good, with the yield of diesel very low.
苏丹高酸原油在ZC-7300催化剂上的转化率很高，但产物分布较差，尤其是柴油的收率太低；
This process has many advantages over the traditional process, such as high yield, high content, high selectivity and low cost in the process. It opens up broad prospects for com - merc...
该工艺与传统工艺相比，具有收率高，含量高，选择性高，成本低等优点，具有广阔的工业前景。
This process has many advantages over the traditional process, such as high yield, high content, high selectivity and low cost in the process. It opens up broad prospects for com - merc...
该工艺与传统工艺相比，具有收率高，含量高，选择性高，成本低等优点，具有广阔的工业前景。
应用推荐