Study of the formation and development of an embryo and fetus.

胚胎学：研究胚胎和胎儿的形成和发育的学科。

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Study of the formation and development of an embryo and fetus.

胎儿的：有关胎儿的、有胎儿特点的或是胎儿的。

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The first chapter is focused on the formation and development process of College Teaching Management System of Song.

第一章，重点梳理了宋代书院教授教养管理轨制的形成和发铺入程。

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The dramatic migration pattern can be chalked up to the rapid development of an oil- and gas-rich shale formation in the western part of the state.

FORBES: North Dakota Leads List Of America's Fastest-Growing States

"Maria oversaw the formation of this trust, bringing together three disparate organisations into one service, and its subsequent development, " he said.

BBC: Maria Ball

"Pete" Aldrich certified that the "technical progress of the flight testing" has satisfied safety, reliability, maneuverability, formation flying, shipboard compatibility and other issues that have, in the past, hindered the development and acquisition of this aircraft.

CENTERFORSECURITYPOLICY: Center For Security Policy