查询词典 intercross

In order to avoid intercross and keep the fine properties,the voile bag would be covered on the selected fine individual plant before blooming.

木豆叶片是草食家畜极好的饲草，特别是在半干旱热带地区鲜饲草缺乏的季节更是如此。

This is an intercross subject concerned with iatrology, optics, vision and esthetics.

视光学是以改善和促进清晰舒适视觉为目标，以保护眼睛健康为己任，医学、光学、视觉科学以及美学相结合的新兴的交叉学科。

With the sciential accumulation of paleontology, biology and rapid development of computer technology, the intercross of these two sciences provides paleontology new research respects and methods.

随着古生物学、生物学知识的积累和计算机技术的发展，给古生物学提供了新的研究着眼点和方法。

Firstly, cross donor and recipient lines to produce F1; secondly, repeated backcross the F1 individuals and the subsequent progenies with the recipient to recover its genetic background; and thirdly, intercross the backcrossed progenies to fix the introgressed genes in the population.

在标记辅助导入过程中，标记信息既可用于辅助前景选择，即对目标基因携带者的选择，以保证目标基因的正确导入，也可用于辅助背景选择，即对受体基因组的选择，以加快受体遗传背景的恢复。

It shows that we should energetically promote the interpenetrating and intercross between nuclear technology and environment science to improve the level of this cross discipline

目前核技术正在环境保护中得到广泛的应用。如：烟道气净化、流体和固体废物的辐照处理、放射性示踪剂研究、核分析技术在环境监测和研究中的应用等。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。