为了提高核桃嫁接成活率，在不同试验点最适宜的肥水条件下，对核桃子苗嫁接、芽接、绿枝接的成活率、新梢生长量及成本进行对比研究。
In order to improve survival rate of walnut grafted, comparison of new shoot increments and cost were made between seedling grafting, bud grafting and green branch grafting of walnut.
在氦氖激光中使用彩色液晶电视需要澄清红、绿、蓝三分量对透射率的贡献。
Contributions of red, green and blue components of color liquid crystal television to the transmittance of a he ne laser beam should be clarified.
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