pure propagation是什么意思

用法例句

Research on the Introduction and Breeding of Dianchi Valley Wetland Landscape Plants;

滇池流域湿地植物的引种繁育研究

Introduction and breeding of the species were carried through in recent years.

大果沙棘是一个优良的灌木树种,近年来杨树局进行了引种繁育。

This paper analyzed and investigated the conclusion of Salvia splendens experiment,put forward the propagation of improved varieties system of Salvia splendens and the technique regulations of the seeds productions,and then laid stress on the propagation of improved varieties of new cultivars to make research.

本文提出一串红的良种繁育制度和种子生产技术规程,并以新品种的良种繁育为核心,开展了相关研究,以供良种的繁育。

The propagation of improved varieties of Tectona grandis L.

文章对国内外柚木良种繁育概况进行了综述,分析了柚木有性繁殖的特点、国内外柚木种子园和母树林的营建以及国内外柚木无性繁殖的发展。

Study on Introduction Breeding and Landscape Application of Cotoneaster Spp.

几种栒子的引种繁育与园林应用研究

Studies on the Introduction and Ecology of a Few Rare Species;

几种珍稀树种的引种繁育及生态学研究

Study on Introduction Breeding and Garden Application of Wild Border Flowers;

野生花境植物的引种繁育与园林应用研究

Studies on Introduction and Breed of Fine Landscape Shrubs in Shenyang;

沈阳地区优良园林灌木引种繁育的研究

A Study on the Introduction, Propagation, Cultural Technique of Dark Barbel Catfish Pelteobagrus Vachelli (Siluriformes: Bagridae);

瓦氏黄颡鱼引种繁育和养殖技术的研究

Studies on Germplasm Resources and Introduction and Propagation of Aconitum in North China;

中国北方地区部分乌头属植物种质资源调查及其引种繁育研究

Establishing zoological gardens, botanical gardens and various artificial breeding centers is an effective method for off-site preservation of various species of wild animals and plants.

建立动物园、植物园及各种引种繁育中心（基地）是迁地保护野生动植物的有效措施。

The Introduction and Breed Techniques of Chilopsis Linearis;

沙漠葳（Chilopsis linearis）引种与繁育技术研究

The Mutilocation Trial and the Bulb Propagation of New Tulip Varieties Introduced from Abroad;

郁金香新品种引种区试及种球繁育研究

Study on Introduction and Bulb Propagation Zone Trail of Gladiolus;

唐菖蒲品种的引种与种球繁育区试研究

rare and endangered species Breeding center

珍稀濒危物种繁育基地

Breed [livestock]

饲养,繁殖,育种 [畜牧]

Breeding unit

畜牧繁殖中心,育种单位

Introduction, cultivation and propagation of Australian plant-lahua

澳洲植物——蜡花的引种栽培和繁殖

Study on Breeding and Propagation Methods of Artemisia annua L. in Yunnan

黄花蒿良种选育和繁育技术初步研究

Study on Seedling and Cutting Propagation of Quercus virginiana

弗吉尼亚栎种子育苗和无性繁育技术

Research on Introduction and Cutting Propagation of Several Sedum L.Plants

几种景天属植物引种及其扦插繁殖研究

The Introduction, Cultivation and Propogation of Fern in Beijing Area;

北京地区蕨类植物引种、栽培及繁殖技术的研究