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

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.

Cut this out on the cross from sew-in interfacing piece on the jacket front seam allowance.

用预先做好衬斜裁,其后把布放在前身缝份上.

In Harry's fifth year, they walk to King's Cross from Grimmauld Place.

在哈利五年级时, 他们从格里莫广场步行去国王十字车站.

The convicted person is suspended on a cross by three large nails.

钉十字架是最残忍的处死方法之一.

The citizens are not to cross the border without permission.

市民不经批准不允许出境.