Biologists found no evidence of any dramatic changes on either the breeding or wintering grounds.
无论在繁殖地或越冬地,生物学家还没有发现任何急剧变化的证据。
Given that there is no known preventive treatment or anti-viral cure, the only practical way to prevent the viruses' spread is to eliminate the Aedes mosquitoes by preventing them from breeding.
假如没有有效的预防措施或抗病毒疗法,那唯一可行的阻止病毒传播的方法就是通过阻止伊蚊的滋生来减少伊蚊的数量。
"Thousands of people just want a tortoise and will buy them, no questions asked," Rick Wilton, owner of a legal tortoise-breeding facility, told the Daily Mirror.
“成千上万的人只是想要得到一只乌龟然后买掉它,什么也不顾及,”一家乌龟养殖场的合法业主瑞克·威尔顿对《每日镜报》记者说。
And these are scattered thinly over 13 nations, four of which no longer have viable breeding populations.
而这些数量稀少的老虎分散在13个国家,其中4个国家的虎不再有可繁殖的种群了。
It is now thought there are no more than 3,200 tigers in the wild, of which only about 1,000 are breeding females.
现在人们认为野生老虎数量不足3千2百头,其中仅约1千头是有生育能力的雌虎。
There are no real culprits (you cannot denounce childless couples) and the solutions sound cheery: encouraging breeding, improving schools, promoting research and the like.
但在该问题上,没有真正的肇事者(你不能责怪拒绝生育的夫妇),解决方法似乎也很令人鼓舞:鼓励生育,改进学校各项工作,加强科研力度诸如此类。
The breeding process of a food corn hybrid variety: Jinxiannuo No. 105 was explained and its yield characters, specific properties, suitable cultivation zones were studied.
介绍了鲜食糯玉米杂交种津鲜糯105的选育过程,研究了该品种的产量性状、品种特性和适宜种植区域。
No one who has attended to the breeding of domestic animals will doubt that this must be highly injurious to the race of man.
任何一个饲养过家畜的人都不会怀疑这对人类是非常有害的。
Nowadays great economic effect had been achieved in agriculture and industrial microbial breeding. But no application of ion beam had been reported in officinal plant breeding.
目前,离子束在农业和工业微生物育种的应用上已产生了巨大的经济效益,但鲜见离子束在药用植物育种上的应用报道。
Breeding of a new dual-purpose grain and silage hybrid maize variety Yudan No.
粮饲青贮兼用型杂交玉米新品种渝单七号的选育。
Experts said there was no significant threat but the oil could affect seabird and turtle breeding sites.
专家们说并没有显著的威胁,但燃料油可能会影响海鸟和海龟的繁殖地点。
Watermelon breeding achieved a major breakthrough, the new variety "South Lake No. 1" comparison test completed successfully, the "going out" over Hengyang participated in the province.
西瓜选育实现了重大突破,新品种“南太湖1号”已成功完成比较试验,“走出”衡阳参加省区域试验。
For the moment, no data regarding the breeding of this species has been observed nor found by the author in the available bibliography.
目前没有数据和相关文献可以表明这个品种的繁殖资料如何。
In that time I quashed the claim of breeding Cardinals in a community tank. The fry would be wiped out in no time by the other fish.
那时,我绝对不相信在混养缸中繁殖宝莲灯的申称,仔鱼立刻被其它鱼吃光。
The excuse of their right of freedom is no reason to treat animals the way these breeding kennels do.
他们的自由权利不能作为他们可以像狗房里那样对待这些动物的理由。
The studies on apomictic rice in our country are still in tentative stage and no apomictic germplasms with practical breeding value have been found.
我国水稻无融合生殖研究尚处在探索性阶段,还没有筛选到具有实用价值的无融合生殖种质。
The experiment results suggested that breeding season of mutton sheep were no affect on sheep embryos production and transplantation in these season.
本试验结果说明肉用绵羊在秋冬春季超数排卵效果差异不明显,可在这些季节进行胚胎生产和移植。
The new strain "24631" named E Damai No. 7 is the first breeding feed barley variety of Hubei Province.
大麦新品种鄂大麦7号(原品系名“24631”)是我省育成的第一个饲料大麦新品种。
Breeding and its culture technique of double lower hybrid Shaanyou No. 8 in Brassica napus l.
双低油菜新品种陕油8号及其栽培技术。
Especially, what self-crossing is highly no appetency makes easy lose of good single genotype, which propagatation and conservation of good varieties breeding brings great difficulty.
特别是自交高度不亲和性,往往使得优良单株基因型很容易丢失,给优良品种选育材料的繁殖和保存带来了极大困难。
Near-isogenic lines at the Wx loci are important materials for wheat starch quality breeding. However, there are no such lines under the Chinese cultivated wheat genetic background.
糯性位点近等基因系是小麦淀粉品质育种的重要材料,而我国目前还没有一套中国栽培小麦遗传背景的糯性位点近等基因系。
Resulting from the lack of cat breeding industry, the cat market depending on the single source of stray cats and pet cats inevitably has no animal quarantine certificate.
没有肉猫养殖场,吃猫市场只能靠偷家猫和流浪猫来保证货源,也必然不可能拥有卫生检疫证。
Using generic markers speeds up old-fashioned breeding methods becauseyou no longer have to wait for the tree to grow up to see if it has the desiredtraits.
使用基因标记技术,可以加快旧式繁殖的速度,因为你不用等待树苗长大才能看到它是否带有那些你想要的特性。
Some infected people for fear of social discrimination, afraid to open with no effective intervention may lead to AIDS in the greater scope of the breeding and spreading.
一些感染者因害怕社会的歧视,不敢公开身份,无法进行有效干预,可能造成艾滋病在更大范围滋生和蔓延。
The breeding process, varietal characteristic, and yield of maize hybrid Jinyu No. 34 were present in the report. The adaptive cultivation regions and integrated cultivation techniques for Jinyu No.
介绍了津玉34玉米单交种的特征、特性、产量表现,提出了该品种的适宜栽培区域及配套栽培技术。
No doubt it's also a prime breeding grounds for mosquitos, but it sure looks inviting in the ads.
毫无疑问,这里肯定也是蚊虫滋生的好地方,可广告却让人看得心驰神往。
If deltamethrin be used with prescript dose in paddyfield, it will have no harmful effect on fish breeding in paddy field and nearby fish pond, but will be more harmful to shrimp.
在稻田中按规定的剂量使用溴氰菊酯农药治虫,对稻田养鱼和邻近鱼塘无危害影响;对虾类有较大的危害性。
If deltamethrin be used with prescript dose in paddyfield, it will have no harmful effect on fish breeding in paddy field and nearby fish pond, but will be more harmful to shrimp.
在稻田中按规定的剂量使用溴氰菊酯农药治虫,对稻田养鱼和邻近鱼塘无危害影响;对虾类有较大的危害性。
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