DKK1 was initially identified as an inducer of head formation in Xenopus embryos (7) and plays an important role in the regulation of bone mass (8-10).

DKK1最开始被确定为蟾蜍胚胎头部形成诱导因子[7]。对骨骼质量调节有重要作用[8 - 10]。

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A dragon like rock formation created from thousand years of erosion. When I returned there last April, the dragon's head has collapsed for unknown reason.

几千年的腐蚀创造而成了一条像龙的岩石形成。去年四月，当我回到那儿，这条龙的头部由于不明原因而倒塌了。

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Head for the formation of this precipitation cone of depression around foundation soil on the impact of research is also an important issue.

针对这种降水形成的水头降落漏斗对基坑周边土体产生影响的研究也是一重要课题。

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The daily chart of Apple Inc. ( AAPL) appears to be forming a reverse head-and-shoulders bottom formation.

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For instance, the homebuilders completed their major head-and-shoulders top formation in 2006, well before the housing market collapsed.

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The daily chart shows a completed head-and-shoulders top formation, as the neckline (line a) was broken in July.

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