查询词典 stem

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。

OBJECTIVE: To construct human immortalized precartilaginous stem cells using human precartilaginous stem cells induced by SV40LTAg gene.

目的：以SV40Tag转染的人前软骨干细胞构建永生化人前软骨干细胞株。

［Objective］To construct eukaryotic expression vector containing Sox9 derived from immortalized precartilaginous stem cells and to probe its inductive effect on marrow stroma cells differentiating into precartilaginous stem cells.

［目的］从永生化骨骺干细胞中克隆Sox9基因并构建真核表达载体，并探讨Sox9诱导骨髓基质细胞向骨骺干细胞分化的可能性。

To study the biologicaleffect of pulsed electromagnetic fieldson the proliferation of Immunomagneticseparated human precartilaginous stem cellsin vitro.To establish immortalizedhuman precartilaginous stem cellsstrain and provided stable cell resource to studythe molecular mechanism of gene targeting on differentiation of PSCs.①The cells from the aborted fetus\'s metaphysis were digested by collagenase,the PSCs were isolated by magnetic-activated cell sorting,then were subculturedand amplified.

探讨体外分离、培养人前软骨干细胞的可行性，分析其表型特点；研究脉冲电磁场对免疫磁性细胞分选的人前软骨干细胞增殖的生物学影响；构建猿肾病毒40大T抗原基因(SV40Tag)介导的永生化人前软骨干细胞株，为下一步基因打靶研究其分化分子机制提供稳定的细胞来源。

Among its many biological activities, the major function of GM-CSF is to stimulate hematogenie stem cells prolification from silent stage to S phage, so that the stem cells can differentiate into granulocyte-macrophage cells.

有4个外显子和3个内含子，基因定位于5号染色体长臂5q21-5q32区，大多数器官均能产生GM-CSF，GM-CSF有多种生物活性，作用于多种细胞谱系，其主要作用是刺激造血祖细胞增殖即从静止期进入S期，并分化为粒细胞---单核巨噬细胞。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。