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The zoos are also start at artificial preed's work in the world.

世界各地的动物园也开始做人工繁殖的工作。

The present studies showed that photoperiods and pineal melatonin had great effects on neuroendocrine-reproductive functions in Plateau pikas.

本项研究表明,光周期通过松果腺激素MLT,在高原鼠兔季节性繁殖的神经内分泌调控中,起着至关重要的作用。

The Food and Environmental Hygiene Department called on the entire community to take an active part in the battle against mosquito breeding and proliferation in the wake of the current outbreak of dengue fever.

食物环境壎芵p呼吁全港市民积极参与预防蚊子滋生及繁殖的工作,以应付近期发生的登革热个案。

They multiplied so quickly that a second pack has since split off, colonizing a second-growth pine forest 30 kilometers further west.

它们繁殖的如此快速以致第二群已开始分离,开拓第二次成长於西边30公里外的松树林。

Though the PBR has started running in China, the illegal propagation still can be found in China. Will it affect the operation of regional exclusive right?

虽然植物品种保护法在中国已经实施,但是非法繁殖的情形仍有发生,这会影响地区专属权策略的运作吗?

The asexual form of reproduction could help population numbers.

这种无性繁殖的形式可以有助于提高鲨鱼的数量。

Breeding of hummingbirds takes place in May and June.

译:蜂鸟生育繁殖的时间是每年的五月和六月。

This material is accelerating function of reproduction, but it has a repulsive optical activity, when confronted with the light, they will go to the backlight side.

这物质有加速繁殖的功用,但却具有厌旋光性,每遇到光线时,便会跑到背光的一面去。

One breeding female tiger had a home range of about 15 square kilometres.

一只繁殖的雌虎大约拥有15平方千米的家域范围。

The Emperor Penguin is the tallest and heaviest of all living penguins and the only one to breed during the winter in Antarctica.

帝企鹅是生活在南极洲最大最重的一种企鹅,也是唯一一种冬天繁殖的企鹅。

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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

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。