The result of path analysis and regression indicated that plant height, area of leaf, volume of root, and dry weight of root were key factors for the roots bleeding intensity.
回归和通径分析结果表明，株高、叶面积、根体积、根干重是影响根系伤流强度的主要因素。
The author finds out the key technique of making durable neon light in north area according to his many years test result, so as to improve the usage time of neon light.
经过多年实践跟踪，摸索出适应北方长寿命霓虹灯制做的关键工艺方法，从而提高了北方霓虹灯的使用寿命。
The author finds out the key technique of making durable neon light in north area according to his many years test result, so as to improve the usage time of neon light.
经过多年实践跟踪，摸索出适应北方长寿命霓虹灯制做的关键工艺方法，从而提高了北方霓虹灯的使用寿命。
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