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Low tufted evergreen shrubs of colder parts of north temperate regions having mosslike foliage and nodding white or pink flowers.

一个矮簇生的常绿灌木属,叶苔藓状,花白色或粉色,下垂,生长于北温带较冷的地区。

We also investigated the effects of competition on the growth and biomass allocation of floating-leaved plants Nymphoides peltata using microcosm system.

通过微宇宙系统对不同类型的竞争对浮叶根生植物-荇菜的生长和生物量分配等进行了研究。

Leaves usually large relative to culm, in palmate arrangement, transverse veins distinct, margins with substantial necrosis in winter.

大的叶通常相对于秆,在掌状安排,离生的横向脉,边缘具结实坏死在冬天内内。

Leaf margin 3-5-palmatisect or -palmatipartite, with pinnatisect lobes; female perianth lobes connate for 1/3 of length.

叶缘3-5掌状全裂的或掌状深裂,具羽状全裂裂片;雌花花被裂片合生达长度的1/3。

Pantropical epiphytic or terrestrial whisk fern with usually dull yellow branches and minute leaves; America; Japan; Australia.

遍布于热带的长有浅黄色叶柄和细小叶片的石生或陆生松叶蕨;见于美洲;见于日本;见于澳洲。

Leaves opposite, petiolate or upper ones sessile.

叶对生,具叶柄的或上部的无梗。

Leaves alternate, linear to linear-lanceolate or oblong-lanceolate, pinnatifid or dentate.

叶互生,线形的到线状披针形或长圆形披针形,羽状半裂的或具牙齿。

Stems herbaceous. Foliage leaves solitary or paired on each growth module, usually long petiolate, often cordate or sagittate, margin entire.

茎草质。营养叶单生或成对在每生长单元,具叶柄的通常长,通常上心形的或箭头形,边缘全缘。

Control effects of the seedlings, whorl leaves and the leaves of transgenic Bacillus thuringiensis corn on the 1 st instar, 4th instar and 5th instar larvae of Mythimna separata were evaluated in laboratory.

在室内用生测法研究了表达Cry1Ab杀虫蛋白的Bt玉米MON810和Bt11小苗和心叶对粘虫Mythimna separata初孵幼虫以及玉米叶片对暴食期4龄和5龄幼虫的杀虫效果。

Control effects of the seedlings,whorl leaves and the leaves of transgenic Bacillus thuringien- sis corn on the 1st instar,4th instar and 5th instar larvae of Mythimna separata were evaluated in laboratory.

在室内用生测法研究了表达Cry1Ab杀虫蛋白的Bt玉米MON810和Bt11小苗和心叶对粘虫Mythimna separata初孵幼虫以及玉米叶片对暴食期4龄和5龄幼虫的杀虫效果。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力