本试验是以提高稻米品质为宗旨，通过不同的栽插行距和不同的栽插株数，调控不同的群体，研究不同群体质量对郑稻18品质的影响。
This study was focused on promting quality of rice through different plants spacing and density for controlling different groups quality so as to study the influence of quality of Zhengdao 18.
一周以后，蔡和郑在玩新的笔记本电脑。
One week later, Tsai and Cheng playing with a new laptop computer.
编纂郑恒雄先生接任本中心联络组组长。
Mr . cheng heng - hsiung takes over as head of the centers liaison division.
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