繁殖的

Propagules and buds of Elodea nuttallii and Potamogeton crispus were exposed to acetic acid concentrations from 1 to 16 mmol/L for 3 or 6 days, and then they were subsequently cultured in absence of acetic acid. Results showed P. crispus was more tolerant to acetic acid than E. nuttallii. At acetic acid concentration of 1 mmol/L, E.

研究了暴露于不同浓度的乙酸溶液后伊乐藻和菹草无性繁殖体的萌发和幼芽的生长状况。1mmol/L的乙酸能显著抑制伊乐藻幼芽的生长(P.05)，但对其繁殖体的萌发无明显影响。

Human Reproduction Update, first published in 1995, aims to provide invited, comprehensive, authoritative, up-to-date critical and balanced reviews covering all areas of human reproduction including reproductive physiology and pathology, endocrinology, andrology, gonad function, gametogenesis, fertilization, embryo development, implantation, pregnancy, genetics, genetic diagnosis, oncology, infectious disease, surgery, contraception, infertility treatment, psychology and counseling, ethics and social issues.

现代人类繁殖》创刊于1995年，目的在于提供受邀请的，广泛的，权威的，最新的关键且适当的评论，其内容包含人类繁殖研究的所有领域，有生殖生理学和病理学，内分泌学，男性科学，性腺功能，配子发育，授精，胚胎发育，培植，怀孕，遗传学，遗传诊断，肿瘤学，传染病，外科，避孕，不育疗法，心理学和咨询，道德规范和社会问题。

At present, research has been carried on about resources of green lacewing and its biology, ecology, ethology of common species, and reproductive technology on a large scale, natural feed and artificial feed as well. However, research on reproductive physiology respect of green lacewing now is less and hasn"t gone too far. This article has carried on certain studies on this respect, aiming at offering theoretical direction for giving play to green lacewing"s reproductive latent, raising artificial reproductive efficiency and field effective protection and utilization.

目前我国对草蛉的资源和常见种的生物学、生态学、行为学以及大规模繁殖技术做了广泛的研究，但目前草蛉的生殖生理方面研究的较少，认识尚不深入，本文就这方面进行了一些研究，旨在为发挥大草蛉的生殖潜能、提高人工繁殖效率及田间有效保护利用等提供理论指导。

Since its creation, one after another huge sums of money from around the world to introduce Samoyed, pine division dogs, golden retriever Ice Tour Narui dogs, German Shepherd Poodle, Yorkshire,, Husky sled dog, Sheepdog, snow-Na Rui dog, West Highland White Terrier, Yorkshire, Bichon Frize, Keji, Silver Fox, Alaskan Malamute, Great Pyrenees and other members door champion offspring, breeding dog who Kennel adhere to the system, based on the principle of genetics, in ensuring that the premise of pure descent, and continuously improve the stability and the excellent quality of breed pure blood.

实体店面和正规狗场从国外引进优良的家庭宠物狗品种和赛级犬种，并进一步地培育繁殖。使我们有能力不断为国内外客户提供血统纯正，高水平的工作犬和家庭伴侣犬常年供应各品种的幼犬，每个品种的狗狗随时可以购买！自创建以来，陆续从世界各地重金引进萨摩耶犬、松师犬、金毛巡回猎犬雪娜瑞犬、德国牧羊犬贵宾犬、约克夏、、哈士奇雪橇犬、古代牧羊犬，雪娜瑞犬、西高地白梗、约克夏、卷毛比雄犬、柯基、银狐、阿拉斯加雪橇犬、大白熊等名门冠军后代，爱狗人犬业坚持系统繁殖，基于遗传学的原理，在确保血统纯正的前提下，不断稳定地提高犬种的优秀品质血统纯正。

The birthplace of migrating birds had been a controversial problem for a long time. Based on comparision within winter habitat, reproduction habitat of Grus nigricollis, reproductive physiology and the upheaval of Qingzang Plateau in the Quaternary Period. We concluded that reproductive habitat was the birthplace of the bird species.

迁徙鸟类的种系发源地一直是个有争议的问题，本文依据黑颈鹤的越冬生境与繁殖生境的对比，以及青藏高原隆升与第四纪冰川的先后、动物繁殖生理等不同证据推断，繁殖地是鸟类迁徒的种系发源地。

4The low similarities betweenseed banks and the established vegetation were considered to be the consequences ofthe frequent presence in the established vegetation but not in seed banks of someperennial rhizomatous plants which mainly depended on vegetative propagation toregenerate;insignificant difference in the species composition of seed barks amongtransects, might be accounted for by the fact that the flood drift had functioned as adisseminator for propagules;and with the intensifying of the flooding disturbance,both species diversity and the similarity between seed banks and establishedvegetations declined.

4种子库与地上植被相似性普遍较低，其原因是主要靠营养繁殖以更新种群的多年生根茎植物经常在植被中出现而不在种子库中出现；受水淹干扰的样带之间种子库的种类组成差异不大，说明洪水漂移行使了繁殖体传播和散布的功能；随水淹干扰强度增加，种子库物种多样性指数减小，种子库与地上植被的物种组成相似性下降。

With the increased phosphorus supply, the net photosynthetic rate at saturated light, leaf area ratio, and the concentration of nitrogen and phosphorus increased in both species, and the biomass allocation of A. crenata to propagule also increased. So it was indicated that the increased phosphorus supply could facilitate the growth and reproduction of these two species.

结果表明：随磷营养水平的增加，两种植物在饱和光下的净光合速率和叶面积比升高，各器官的氮浓度和磷浓度均有所增加，其中朱砂根对繁殖器官的投入也增加，表明磷营养水平的增加能够促进其生长和繁殖。

Significant differences were shown in the observation times of females during the peak and the middle of the reproductive season at different densities. The observation time of the females was much longer in low density population than that in high density population. For males, there was no significant difference in observation time between or among population densities. At both low and high population densities significant seasonal variation was found in the duration and frequency of male plateau pikas observation behavior, nor was that of females.

结果表明：在繁殖盛期和繁殖中期，低密度种群内雌性高原鼠兔的观望时间均显著高于高密度种群内，而在其它两个时期内无明显不同；雄性高原鼠兔的观望时间在不同密度间比较均无显著差异；同一密度条件下，雄性高原鼠兔的观望行为持续时间和发生频次均表现显著的季节性变化，而雌性高原鼠兔无明显差异。

This product is at the micro-organisms are dormant, to preserve the stability of easily put into the water body, the dormant viable recovery and will soon collapse and the multiplier into a dominant population reproduction, the rapid decomposition of organic pollutants in water, the elimination of amino nitrogen in the water , nitroso nitrogen, hydrogen sulfide and other harmful substances, and single-cell algae into the source of nutrition, the promotion of diatoms, green algae, such as good growth, inhibit the propagation of harmful algae, play a role in the rapid fertilizer, at the same time can increase the dissolved oxygen water, purification at the end of quality, improve water quality.

本品微生物均处于休眠状态，稳定而易保存，投放到水体后，休眠活菌能很快复苏和崩解，并以倍数繁殖成优势种群，迅速分解水体中的有机污染物，消除水中氨基氮、亚硝基氮、硫化氢等有害物质，并将其转化为单细胞藻类的营养源，促进硅藻、绿藻等优良藻类的生长，抑制有害藻类的繁殖，起到迅速肥水的作用，同时能增加水体溶氧，净化底质，改善水质。

Cloudy water in the aquarium is caused by a bacteria bloom, while green water is an algae bloom.

水族馆里的混浊水质是由细菌繁殖引起的，而绿色的水是由藻类繁殖引起的。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。