Effects on mitosis and chromosomal aberrations of tobacco root tip cells were observed by the method of artificially inducing para-nodule treated with 2, 4-d and rhizobium.
通过人工诱导烟草结瘤的方法，观察给予2,4 - D、根瘤菌后，其对烟草根尖细胞有丝分裂和染色体畸变的影响。
The chapter 4 brings forward a new 3-D surface inspection method and apparatus using the linear array CCD camera and the linear light source.
第四章提出了一种新的利用线光源和线阵光电传感器实现物面三维信息检测的方法和装置。
To solve the problem of multi-objective optimization such as limited searching scope, complicated computation, a 4-D visual method was proposed.
视图中多个切片的同色线集成为空间等值域，获得清晰的4维显性可视化效果，并据图中的交域颜色分布实现多目标寻优。
Aiming at the dentate boundary problem which is brought by the traditional Cartesian method, Part 4 introduces the diagonal Cartesian method to improve the former 2-d flow mathematic model.
第四部分针对笛卡尔坐标方法处理复杂边界存在的锯齿状问题，引进斜对角笛卡尔方法，对已有的蓄滞洪区二维水流数学模型进行了改进。
Based on the theory of facial animation in MPEG-4, a new method of realizing 3-d facial animation is proposed in this thesis. This method is applicable for all topological face models.
本文在MPEG - 4的三维人脸动画原理的基础上提出一种新的基于MPEG - 4的、适宜于任意拓扑结构模型的三维人脸动画实现方法。
Based on the theory of facial animation in MPEG-4, a new method of realizing 3-d facial animation is proposed in this thesis. This method is applicable for all topological face models.
本文在MPEG - 4的三维人脸动画原理的基础上提出一种新的基于MPEG - 4的、适宜于任意拓扑结构模型的三维人脸动画实现方法。
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