三、 衍生系统法（derived line method）为了 利用系谱法和混合法的优点，克服其缺点， 在这两种方法的基础上又派生出许多方法， 本节主要介绍衍生系统法。
基于28个网页-相关网页
... 改良系统育种法 modified pedigree method 派生系统育种法 derived line method 定向无线系统 beam aerial ...
基于1个网页-相关网页
derived-line method [农学] 派生系统法
The loci of plastic hinge line and the maximum load during first roof weighting are determined by using kinematical method, and the minimum span of roof key stratum is derived.
利用机动法确定了老顶岩板初次来压时载荷的上限值和塑铰线的位置，得到了顶板岩体关键层的最小破断跨距。
GS Yudou 8 is a narrow-leafed soybean variety derived from the natural hybrid of Zheng 74046 line and a tip soybean parent material (paternal) with a pedigree selection method.
GS豫豆8号是用系谱法从郑74046品系与尖叶桥梁亲本自然杂交株的杂种后代中选育成的窄叶型大豆新品种。
The determination method and computing formula of the permissible lateral and vertical deviation of arbitrary point on axial line of the target are discussed and derived.
讨论并推导了靶体轴线上任一点的允许横向偏差和允许纵向偏差的规定方法和计算公式。
应用推荐