文章从种植业结构角度，分析了黑龙江省连年大量使用长残留性除草剂的原因及其弊端。
From the Angle of plantation structure, the article analyzed the reason and shortcoming of vast and successive application of residue herbicides in the Heilongjiang Province.
然后结合目前中国证券市场所有制结构的弊端，进一步论证优化中国证券市场所有制结构的迫切性；
Next, aiming at the malpractice of the ownership system structure in Chinese security market, the paper also analyzes the urgency to optimize the structure of ownership system in our security market.
本文通过对这两种压接线方式的比较分析，指出板式压接线方法的一些弊端，并推荐选择筒式结构的接线方法。
By analysis and comparison between the two methods, some shortcomings of plate pressure connection method are shown and the connection method of sleeve structure is recommended.
应用推荐