A method of year-roundly mass rearing Laodelphax striatellus in laboratory;
灰飞虱室内大量繁殖及越冬饲养方法
This paper deals with the key technology and the technological process of the mass rearing of Phytoseiulus persimilis.
本研究探索了智利小植绥螨(Phytoseiulus persimilis)大量繁殖的关键技术及工艺流程。
This paper was mainly to research on the standard of the quality control of mass rearing Trichogramma with artificial host eggs.
本文主要对利用人工卵大量繁殖赤眼蜂的质量控制标准进行深入探讨,并提出在繁蜂过程中影响赤眼蜂品质的关键因素。
The species, abundance, distributions and breeding ecologies of breeding waterbirds were investigated during 1989 to 2007 in Wuzhishan Archipelago Nature Reserve, Zhoushan, Zhejiang Province.
1989～2007年,对浙江舟山五峙山列岛自然保护区繁殖水鸟进行调查和监测,记录繁殖水鸟的种类、数量、分布及其繁殖生态。
prolific animal that feeds chiefly on earthworms.
主要以蚯蚓为食并大量繁殖的动物。
long-horned beef cattle formerly common in southwestern United States.
在美国西南部大量繁殖的长角肉用牛。
Research on the Key Technology of the Massive Reproduction of Phytoseiulus Persimilis;
智利小植绥螨大量繁殖关键技术的研究
Direct regeneration of shoots from immature inflorescences in Dendrocalamus asper (edible bamboo) leading to mass propagation
马来甜龙竹大量繁殖来自未成熟花序的定向笋更新
It was necessary to overexpose this positive record in order to enhance the presence of the Plankton bloom.
为了使大量繁殖的浮游生物的形象得到增强，必须使这一波段的正片记录曝光过量。
a sturdy thickset short-haired breed with a large head and strong undershot lower jaw; developed originally in England for bull baiting.
大量繁殖的强壮的短毛狗，大头、下颚突出；最早在英国喂养它们是为玩嗾狗逗牛游戏。
The capacity for producing offspring, especially in abundance;productiveness.
繁殖力，生殖力尤指大量产生后代的能力；生殖力
Most birds breed in the spring.
大多数的鸟在春季繁殖。
Most plants reproduce by seed.
大多数植物靠种子繁殖。
Now these South African penguins are reproducing in higher numbers than before the oil spill.
现在这些南非的企鹅比石油溢出前繁殖的数量更大。
Various clones families could be propagated commercially without having been clonally tested.
在这些家系中不同无性系被大量地繁殖，也没有进行无性系的测定。
The enormous numbers of field mice encountered during times of peak populations greatly complicate control.
在种群繁殖高峰期间出现的巨量田鼠使防治问题大为复杂。
Insects are small creatures who give rise to new generations every year.
昆虫是小型生物，每年都大量地繁殖着一代又一代。
Studies on Dietary Protein and Energy Levels and Its Effect on Productive Performance in Landrace-Yorkshire Hybrid Sows;
能量与蛋白质水平对长大二元杂母猪繁殖性能的影响研究
An Investigation of Dietary Protein and Energy Levels and Its Effect on the Reproductive Performance in Yorkshire Gilts;
日粮蛋白能量水平对大约克母猪繁殖性能的影响及现状调查
The Relationship between the Reproductive Success and Habitat Quality of the Great Tit in Artificial Nests;
人工巢箱条件下大山雀繁殖成功与栖息地质量的关系
Studies on reproductive allocation,floral size and its trade-off with floral number of annual Gentiana
一年生龙胆属植物的繁殖分配及其花大小、数量的权衡关系研究
Comparison of diaspore shape,size,and mass of main desert plants in the lower reaches of Tarim River of Xinjiang,China.
塔里木河下游主要荒漠植物繁殖体的形状、大小与质量比较