顶端

The results showed that: different concentrations of sucrose and boric acid had significant impact on pollen germination, but different concentrations of calcium had no significant impact on pollen germination. It was most appropriate for tube elongation when sugar 150 gL^(-1) and boric acid 100 gL^(-1). Lack of sucrose would lead to the accumulation of callose in top of pollen tube and hold back its growth. The distribution of callose was regular in pollen tube when the medium lacked boric.

结果表明：蔗糖、硼酸浓度间对花粉萌发有显著影响，钙浓度间对花粉萌发的促进作用不明显；蔗糖150 gL^(-1)、硼酸100 mgL^(-1)时最适宜花粉管伸长；蔗糖的缺乏会导致胼胝质在花粉管顶端积累，使其生长停滞，缺硼时胼胝质在花粉管内分布正常。

Technically, you've got a Capitol Hill view.

从技术上讲你看到了美国国会的顶端景色

Single leaf alternate, oval to lanceolate , there is a clear and thick jagged edges or deep cleft, base wedge-shaped, with petiole, the first capitulum solitary or a few stems and branches set born in the top of the outer phyllaries green multi-layer, strip, edge membranaceous; tongue Flower-shaped yellow, red, purple or white or light green.

单叶互生，卵形至披针形，边缘有明显而粗大锯齿或深裂，基部楔形，有叶柄，头状花序单生或数个集生于茎枝的顶端，外层总苞片绿色多层，条形，边缘膜质；舌状花黄色，红色、紫色或白色甚至浅绿色。

Before the bottle reaches the capper, however, the CO2 at the top of bottle neck is completely in contact with air. During transportation, oxygen will come into contact with the beer in the bottle and influence the beer quality.

在瓶子离开灌装机而到达压盖机之前，瓶颈顶端的CO2与空气完全接触，运输过程中氧气会与瓶内啤酒充分接触，从而影响啤酒质量。

I didn t worry about dripping because a sheet of cardboard was used to protect my table top.

我不担心滴水，因为一张纸板，是用来保护我的表顶端。

Species in the mammalian order of Carnivora rank top in the animal food chain.

食肉目哺乳动物位于食物链顶端，很多成员不仅在我国野生动物保护工作中占有重要地位，而且还是研究动物适应性进化遗传机制的重要模式生物。

Most of all, they want to know PEAK carries the Rockets to the top.

最重要的是，他们想知道山顶进行火箭顶端。

Many parents opt for a pram in 2 parts; a fold down frame and a top which can be used as a carrycot with handles.

许多家长选择一种pram在二部分；一张折叠下跌框架和顶端，这可被用来作为carrycot与处理。

According to Dan Griswold, director of the Cato center, there are three main factors that favor U.S. production.

美国仍然处于价值链的顶端，为美国和其他国家消费者生产高质量、高科技的产品。

Stamens 5, usually inserted at base of corolla tube and adhering to stigma head to form gynostegium; filaments usually connate to form a tube enclosing ovaries; anthers 4-celled (Periplocoideae and Secamonoideae) or 2-celled, often with a membranous apical appendage; pollen tetrads contained loosely on a spatulate translator with a basal corpusculum, or pollen united into waxy pollinia, each attached through a caudicle to the retinaculum between adjacent anthers to form a pollinarium, pollinia 2 or 4 per pollinarium.

雄蕊5，着生于花冠筒的基部，与柱头贴生，和柱头粘生，形成合蕊柱；花丝通常合生成管包围子房；花药4室(Periplocoideae和Secamonoideae)或者2室的，通常有一膜质的顶端附属物；四合花粉松散地着生于匙形的载粉器上，具有着粉腺体，或者花粉合生成腊质的花粉块，通过花粉块柄与系接于着粉腺上，每个花药有花粉块2个或4个。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。