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Lineage-tracing analyses indicate that the ectopic endothelial cells in embryos with decreased Notch activity originate from mesodermal cells that normally produce erythrocyte progenitors.

命运追踪结果显示，Notch降低的胚胎中，异常增加的内皮细胞是来源于本应该形成红细胞前体的中胚层细胞。

However, odontogenic tumors or cysts may originate from residual cells, although little is known about how HERS proliferates and disappears.

虽然对于HERS细胞的增殖及消失了解甚少，但牙源性肿瘤或囊肿可能起源于上皮剩余。

The possible reason is that doped Zr〓 ion enters the interstitial sites for its small ionic radius and no dipole complexes were formed. Monovalent ion F〓 has been reported to improve the scintillating performance greatly. Our results show that Agrand diagrams of F〓: PWO crystals obey an modified Cole-Cole equation. The crystals present similar dielectric relaxation phenomena to but have much higher activation energy than that of RE〓: PWO crystals, which originate from the 〓 dipole complexes. The co-doping of trivalent Y〓 and pentavalent ion Nb〓 does not always show a better scintillation performance than that of solely doped samples, which could be attributed to the existence of the 〓 dipole complexes, which counteract the solely doping effect.

而Zr〓由于离子半径太小，可能进入间隙位置，不形成类似的偶极缺陷；一价负离子F〓的掺入提高了晶体闪烁性能，阻抗谱测试结果表明F〓：PWO晶体Argand图符合修正的Cole—Cole方程，晶体同样表现出介电弛豫现象，并具有比RE〓：PWO晶体中高得多的弛豫激活能，可能起源于形成的〓偶极缺陷；Y〓和Nb〓双掺的PWO晶体并没有显示出两种离子单掺优点的叠加，阻抗谱测量结果表明，在双掺晶体中可能形成〓偶极缺陷，使两者掺杂作用相互抵消。

These meteors originate from a mysterious object called 3200 Phaethon.

这些流星来自一个叫3200 Phaethon的神秘物体。

These meteors originate from a mysterious object called 3200 Phaethon. It may be an asteroid or it may be a burnt-out comet.

双子座流星雨源自一个天体3200 Phaethon，它或许是一个小行星，也说不定是一颗已燃烧殆尽的彗星。

Poncirus is known to originate in China, and there exists numerous variants, many of them have yet not been found and characterized.

我国是枳的原产地，存在大量的变异类型，但还有众多变异尚未被发现和鉴定。

Methods 10 adult arms were pured latex into artery microanatomized and observed the dorsal branch of anterior interosseous artery's originate、diameter、length and distribution of skin branch and periosteum branch.

10侧成人上肢标本经肱动脉灌注乳胶后，对其骨间前动脉背侧支的起始部位、口径、长度及其皮支、骨膜支的分布进行显微解剖观察。

Secondly, according to the stem and leaf anatomy, leaf epidermis, pollen morphology and floral development, it is found that there are no close relations between Acorus and Typhales, especially in the aspect of floral development. In the course of floral development of A. calamus, neither bracteloe primordium nor common primordium occurs in the whole course. Early development of the flower is strongly unidirectional. Three shield carpels develop into a pistil. In Sparganium fallax, each female flower has a bracteole. The bracteole primordium and the floral primordium originate from a complex structure. A single saccate carpel develops into a pistil. In staminate flowers, petal and stamen primordia initiate spirally.

菖蒲属与香蒲目的茎叶解剖特征、叶表皮特征、花粉特征及花器官发生特点等亦存在着明显区别，特别是花器官发生特点差异尤为显著，如菖蒲属花器官发生过程中，没有苞片原基，也不存在任何形式的复合原基，花被与雄蕊原基均以单向性方式发生，雌蕊由3心皮发育而成，具有&盾状心皮&的特点等，黑三棱属则有苞片原基发生，且苞片原基与雌花原基起源于共同的复合结构，雄花的花被原基和雄蕊原基均以螺旋状方式发生，雌蕊由单心皮发育而成，未发现有2或3个心皮原基或其痕迹的现象，体现出&囊状心皮&的特点。

Cloves originate from an evergreen tree that is called "Syzygium".

来自丁香的常青树就是所谓的&赤&。

Both two sides'superior thyroid arteries mainly appeared to originate from the initiation of the external carotid artery (61.35%); two sides inferior thyroid arteries mainly from the thyrocervical trunk (87.78%), and the ima thyroid arteries from brachiocephalic trunk (88.89%).

甲状腺上动脉多源自颈外动脉起始部(61.35%)；甲状腺下动脉多源自甲状颈干(87.78%)；甲状腺最下动脉多源自头臂干(88.89%)。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。