起源于

These bony appositions emerge from the periosteum and are based on endochondral bone formation.

这些骨性成份起源于骨膜，通过软骨内成骨发展而来。

These are at any rate the forms appropriate to marriages between members of the same family-group or tribe ; and, so far as appears at present, they could only have originated among endogamous tribes, or — in the case of marriage within the tribe

这些是在任何等级适合于同一家庭群组或部落的成员间结婚的形式；而且，只要出现在现在，他们只能起源于内婚的部落之中，或者允许其成员在他们自己中间结婚或对他们是否因婚进入其他群组不关心的部落之中。

The findings were compared with those from ovarian carcinomas unrelated to endometriosis, atypical endometriosis, and ovarian endome...

结果：起源于内异症的卵巢子宫内膜样癌和卵巢透明细胞癌中各有1例检测到K-ras基因第12密码子发生突变，突变类型为GGT→TGT，即甘氨酸→半胱氨酸，其余标本均未见第12、13密码子突变。p21蛋白在与内异症相关的卵巢肿瘤。。。

It is currently considered that HDCP origins from the patho-physio changes of placenta,this kind of changes can further lead to the damage and disfunction of blood vessel endotheliocyte,and consequently,cause a serial of symptoms.

目前认为HDCP的发病起源于胎盘的病理生理改变，此改变进一步导致全身血管内皮细胞损伤和功能异常，从而引起一系列HDCP的临床症状。

The focus of this paper lies in how to study the coal-measures formed in the epicontinental sea basin using the theory of seqence stratigraphy originated from continental margin deposition study.

如何将起源于大陆边缘海盆地的层序地层学研究思路、方法体系应用于内陆表海含煤盆地分析中，是本文的重点和要解决的关键性课题。

They identified 371 genes (nearly 10%) as monoallelically expressed in epigenetically stable patterns in at least one population of cells derived from a single B cell clone.

他们确认起源于一个单B细胞克隆种群的371个基因（近10％）以单等位基因性在后生遗传稳定模式中表达。

Epithelioid hemangioendotheliomas are intermediate grade vascular malignancies that are closely associated with or arise from a vein in 50% of cases.

上皮样血管内皮瘤是中度恶性的血管肿瘤，50%的病例与血管密切相关或起源于血管。

A North American origin was assigned to the base of the Gaultherieae. It positively supports the boreotropics hypothesis for the origin of the Ericaceae.

结果表明白珠树族可能起源于温带北美洲，这为杜鹃花科及其科下阶元起源地的&boreotropics&假设提供了有利的证据。

Both of these facts mean it is likely that some lineages which seem to make their first appearance in the extratropical fossil record actually started out near the equator.

上述两种因素都表明某些世系虽最早出现在热带外区域的化石记录上，实际上却有可能起源于赤道附近。

The earliest and reliable Castanopsis fossil records date back at least to Eocene, and subfamily Castaneoideae fossil records found from Paleocene, it is indicated that appearance of Castanopsis is not later than Paleocene . All fossil records of Fagaceae and Castanopsis report from the Northern Hemisphere and their main distribution regions are in the Northern Hemisphere . It can be concluded that the Northern Hemisphere is the center of origin of Fagaceae and Castanopsis . However, owing to the discrepancy between fossil data and results of modern botany research as well as scarcity of fossil data from key area, precise center of origin of Castanopsis cannot be inferred.

栲属在地质历史上有着比现在广泛的分布，最早、最可靠的栲属化石记录发现于始新世地层，栗亚科化石在古新世就有发现，化石记录表明栲属起源的时间不晚于古新世，所有的壳斗科及栲属的化石都发现于北半球，现代分布也主要在北半球，壳斗科及栲属起源于北半球可以确认，由于化石证据与现代植物学的研究结果有较大差异以及关键地区化石证据的不足，具体的起源地尚不能肯定。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。