Although it was gone through evolution by artificial selection and natural selection, Allium tuberosum kept little differentiation from Allium ramosum.

Due to the double effects of natural and artificial selection, the rule of crop is special compared with the natural one in the natural one in the niche construction.

作物的传统品种与新品种相比，具有较强的进化惯量与较弱的进化动量；在自然选择与人工选择双重作用下，作物生态位的构建机制有其特殊性。

According to the resource allocation theory, artificial selection, the direction of selection and the degree of selection can all affect the behavioral strategies of animals.

根据资源分配理论，人工的选育及其选育方向和程度都会导致动物的行为策略产生变化。

The grain and rice quality characters are relatively disperse, because of the synthetic functionary results between ecological domestication and artificial selection.

籽粒和米质性状则相对分散，它是生态驯化和人工选择综合作用的结果。

Using or creating variation, and fixing down the favorable genes through the artificial selection, may realize the breeding of the new varieties.

利用或创造变异，通过人工定向选择将有利的变异固定下来，可实现新品种的培育。

In order to strengthen artificial selection and to increase grain yield, the roles of root signals in wheat crops should be reduced.

在作物生产中，作物水环境得到了改善，强大的多年生竞争者基本消失，为强化人工选择力度，提高作物产量，麦类作物的根信号作用应当有所消弱。

But it is eliminated as a trait bad for harvest in the artificial selection and seed selection.

但是，在长期的人工选择和品种选育过程中，芒作为一个对收割不利的性状逐渐被淘汰。

Response of Main-Effect QTL for Plant Height and Flag Leaf Width to Artificial Selection in Rice

影响水稻株高和剑叶宽主效QTL对人工选择的响应

This is the result of artificial selection, population genetic variation caused by which always develop to the benefit of mankind.

这是人工选择的结果，由选择造成的种群遗传性变异，总是朝着对人类需要有利的方向发展的。

There were significant genetic differences between different varieties for plant height evenness, which can be improved by artificial selection.

结果表明：整齐度系数在不同品种（系）间存在着极显著差异，杂交选择可有效提高品种的株高整齐度。

The new algorithm can get rid of the problem caused by artificial selection. Simulation results show that the proposed method is feasible.

改进后的算法可以摆脱人工选择的困扰，仿真结果表明，我们提出的方法是可行的。

The genetic structure has changed due to artificial selection and genetic differentiation index indicated slight differentiation among them.

由于人工定向选择，它们的遗传结构已经起了一定的变化，分化系数表明它们之间已经产生了分化。

The effect of artificial selection and natural selection on the origin and evolution of the characters was also discussed.

对人为选择和自然选择在部分性状的起源与演化中的作用进行了探讨。

Artificial selection and the alteration of chicken behavioral strategies

人工选育与鸡行为策略的变化

And in Macro level, the evolutionary dynamic is mainly artificial selection: competition and cooperation.

在宏观结构层级上演化动力则是人工选择机制&竞争与合作。

Damping factor method is realized and method of eigenvalue of artificial selection improved.

实现了加阻尼因子法，实现并改进了奇异值人工截除法；

He paid with a crossed check.

他用横线支票付的账.

Put your watch back one hour when you cross from France to England.

当从法国进入英国时,把你们的手表拨后一小时.

When he was a child, older boys once ripped a cross from his neck.

他还是小孩时, 比他大的男孩曾经从他脖子上扯下十字架戏弄他.

When cross from England to France, watch shall be putted forward one hour.

当从英国进入法国时, 应把表拨前一小时.

Joint commanders adopt the right operating patterns to cross from rural into urban terrain.

从郊区进入市区,联合指挥官要采取正确的作战样式.