查询词典 stem

The peony duplicate leaf has stretches out straight in front of oneself, slanting extends the different shape, after the general stem is long four handles stems, only then can have the bud appearance, each handle stem leaf has three groups of three leaf blades productions, constitutes three forks nine peonies to have stands erect, half development, develops three kind of shapes, the flower bud has the circle, oblately, the point round, long sharp circle Zhu Xing?

牡丹复叶有平伸、斜伸不同形态，一般枝梗长出四柄梗后，才会有蓓蕾出现，每柄梗叶有三组三顶叶片生成，构成三叉九顶。牡丹有直立、半开展、开展三种株形，花蕾有圆、扁圆、尖圆、长尖圆诸形。

Notch1 is expressed by stem cells resided in the cervical loop epithelium, and Notch signaling pathway play a central role in fate decision of those stem cells. Notch receptors and their ligands are involved in both patterning and cell fate determination during odontogenesis. Moreover, many cell factors, which are closely related with odontogenesis, could regulate expression of Notch receptors or their ligands.

既往研究显示：早在牙齿发育期，Notch1就表达于颈环星网状层的干细胞中，是其保持干细胞性质的重要机制；Notch-Delta信号还与成釉细胞、成牙本质细胞分化有关，被认为是牙齿发育细胞分化多样性的原因之一；另外，目前已明确与牙胚细胞分化有关的生长因子如TGFβ、FGF、BMPs等均可诱导Notch受、配体的表达。

However, hair follicle stem cells prefer hair destiny in vivo, unless the injury of epidimal or sytogland occurs. In 1990, Cosarelis et al. proposed "The Bulge activated hypothesis", they think the signal moleculars emit from the dermal papillar induce the downward migration and differentiation of hair follicle stem cells.

然而，体内正常情况下毛囊干细胞首先向毛发谱系定向分化，只有在表皮或皮脂腺受到损伤时，它们才进行程序重组而向表皮或皮脂腺方向分化。1990年，Cosarelis等提出毛囊的&隆突激活假说&，认为来源于毛乳头的信号因子触发了毛囊干细胞向下迁移并分化，从而维持了毛发周期的正常循环。

During the early growth stage of seedlings, basal stem diameter and paripinnate number were decreased with the increasing of shade, taproot length, root : shoot ratio, total dry weight and leaf area per seedling were maximal under 37.3% NS, specific leaf area was increased with the increasing of shade, but the relative growth rate was declined. Seedlings grew fastest under 0.6% NS, suggesting that nutrients stored in seeds played an important role at the early growth stage. The treatment of 37.3% NS was best for established seedlings in seedling height, basal stem diameter, paripinnate number, rachis length, the maximum sub-leaflet number of individual paripinnate, leaf area per seedling, relative growth rate and net assimilation rate. Light intensity was positively correlated to total dry weight, and negatively to specific leaf area. The maximum of SLA was observed under 15.5% NS.

生长早期的幼苗基径和复叶数随遮荫程度的增加而降低；主根长、根冠比、总干重和单株叶面积均以37.3% NS处理最大；比叶面积随遮荫程度的增加而增大，而相对生长率则降低；幼苗株高在0.6% NS下增长最快，表明种子中贮藏的营养物质对幼苗的早期生长可能具有重要作用。37.3% NS处理对定居后绒毛番龙眼幼苗的生长最有利，幼苗的株高、基径、复叶数、叶轴长、复叶最多小叶数、单株叶面积、相对生长率和净同化率均在37.3% NS处理下获得最大增长；幼苗总干重随光照强度的减弱而降低；比叶面积在15.5% NS处理时最大。

At 6 wk, the hepatic stem cells begin to differentiate to hepatocyte system, and then to cholangiocyte system in the next week. Like oval cells in the adult liver, the hepatic stem cells mainly locate at the periportal region at 10-12 wk.

wk， 肝干细胞开始向肝细胞系分化， 7 wk向胆管系分化， 10-12 wk，肝干细胞主要局限于汇管区周围的肝索，与成年肝中卵圆细胞的分布一致。

Leaves usually basal and stem, entire; basal and lower stem leaves usually long petiolate.

基部的叶通常和茎，全缘；基部和下部茎生叶通常长具叶柄。

Except 3 cultivars, the cultivars with Contender-type phaseolin have their erect stem, and the culitvars with Sanilac-type phaseolin have their voluble stem.

除3个品种外，凡菜豆球蛋白含3主要多肽的品种都是茎直立的矮生类型；而只有2主要多肽的品种都是茎缠绕的蔓生类型。

The stem is steel and phosphated, which is the correct protection, but, obviously, where the stem breaks there is no protection.

干是钢铁和磷酸化，这是正确的保护，但是，很明显，那里的干休息，是没有保障。

Because of nitrogen, the value of IAA/ABA、GA3/ABA、(IAA+GA3+ZR)/ABA in grain promoted at seed filling stage and at the mature stage.6、The adjustment of nitrogen levels on carbon and nitrogen metabolism.Nitrogen reduced the C/N in leaves and stem. When the nitrogen rate was 50 kg/hm2, the effect on stem was obvious. When the nitrogen rate was 100 kg/hm2, the effect on leaves was obvious. The C/N in roots lower before seed filling stage and the effect was not obvious after seed filling stage.7、Effect of nitrogen levels on yield traitsPlant height, pods per plant and full grain number were increased and bottom-pod height and podded node were decreased by applying nitrogen.

施氮在鼓粒期、成熟期均提高了子粒中IAA/ABA、GA3/ABA、(IAA+GA3+ZR)/ABA的值。6、氮素水平对大豆碳氮代谢的调节施氮降低了叶片和茎秆中C/N的比值，施氮量为50 kg/hm2时，对茎秆作用效果明显，施氮量为100 kg/hm2时，对叶片效果明显；施氮降低了根系鼓粒期前的C/N比值，而鼓粒期后作用效果不明显。7、氮素水平对产量性状的影响施氮增加了大豆的株高、株荚数、饱满粒数，降低大豆的结荚高度、结荚结位。

4The reproductive activity are fairly between the adipose mesenchymal stem cells and bone marrow mesenchymal stem cells, the postdigestive 2nd and 5th generation cells have 6-9 days log phase growth after the latent period about 24-48 hours, then transit to the platform period.

4脂肪间充质干细胞的增殖能力与骨髓间充质干细胞相当，消化后的第2、5代细胞经历24～48小时的潜伏期后，进入6～9天的对数生长期，然后过渡到平台期。

Use nationalization degree and the relationship that commercialize degree, condition of calculable market economy plays scope of optimal and state-owned economy.

利用国有化程度与市场化程度的关系，可计算市场经济条件下最佳国有经济规模。

The kinds of extractant also effected desulfurization rate .

萃取剂对脱硫率的影响也很大，乙二胺的萃取效果优于甲醇的。