繁殖的

This paper deals with the influences of Hg to the morpha. some physiological and biochemical parameters such as chlorophyll, superoxide dismutase, catalase of a kind of submerged macrophyte Egeria najas; some parameters for the amelioration of water quality and agamogenesis of Egeria najas were also studied.

本文研究了Hg~(2-)对沉水植物细叶蜈蚣草外部形态、叶片叶绿素含量、超氧化物歧化酶和过氧化氢酶活性等几个生理生化指标的影响：从水体主要理化指标和生物营养元素的变化情况研究了Hg~(2 )对细叶蜈蚣草净水功能的影响；从细叶蜈蚣草断枝和侧枝生殖的变化情况研究了Hg~(2 )对其营养繁殖的影响。

Legionellae are aerobic, non-spore forming, rod- shaped , typically flagellated, gram-negative bacteria.

军团菌群是一种好氧的、非孢子繁殖的、杆状的、一般带有绒毛的格兰氏阴性菌。

The recurrence of warm conditions has allowed some detailed interpretation of the effect on the "hyperthermal" B.sarsi,resulting in an overwinter reduction of breeding adults,attributable either to reduced survival to maturity or to emigration away from the area during warmer winters.

温暖条件的循环导致B·sarsi种群能够越冬进行繁殖的成体数量减少。实际上数量减少的主要原因是由于可存活过冬的个体减少、或者暖冬导致个体迁徙到别处。

Occurring or reproducing without the union of male and female cells; asexual or parthenogenetic.

无性的不经过雄性和雌性细胞结合而产生或繁殖的；无性的或单性生殖的

However, the reproductive conditions of gyrodactylids surviving to cessation of an aluminium exposure is unknown. Therefore, Atlantic salmon (Salmo salar L.) parr infected with G. salaris was experimentally exposed to elevated concentrations of aqueous aluminium for more than 1 month.

但停止用药后存活的三代虫恢复繁殖的情况仍未知，因此，将感染三代虫的大西洋鲑幼鱼浸泡于更高浓度的铝溶液1个月以上。

Howeer, the reproductie conditions of gyrodactylids suriing to cessation of an aluminium exposure is unknown. Therefore, Atlantic salmon (Salmo salar L.) parr infected with G. salaris was experimentally exposed to eleated concentrations of aqueous aluminium for more than 1 month.

但停止用药后存活的三代虫恢复繁殖的情况仍未知，因此，将感染三代虫的大西洋鲑幼鱼浸泡于更高浓度的铝溶液1个月以上。

It is endemic in 107 countries and infects up to 500 million people annually.

但是，疟疾并不是由带病菌的空气、而是由不流动的水中所繁殖的蚊子造成的。

Developed over ten centuries by Asian breeders, this living art of the East today attracts growing numbers of Western aquarists.

成熟的越过10世纪被亚洲人繁殖的动物，这些东方的生活艺术今天吸引扩大许多西方的水族馆。

Although juveniles and non-breeding females may also help out, the fathers do most of the work.

尽管处于青年的猴子们和没有繁殖的雌性可能会帮忙，但是父亲做的工作是最多的。

Cloning of animals is a group of special animal groups, through human asexual reproduction means, From a background of animal cells is the same group of individuals.

克隆动物是一群特别的动物群体，是人类通过无性繁殖的手段，从一个动物细胞获得背景相同的个体群的过程。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐