The study and development of Pin Barrel Extruder mentioned above encounter such problems.

销钉机筒挤出机的开发改进，就遇到了类似得问题。

youdao

The study and development of healthy powder paint are described. Development paths of several kinds of healthy powder paints are illustrated.

阐述了如何研究和开发健康型粉末涂料，列举了几种健康型粉末涂料的开发途径。

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A comprehensive review is given on the working principle of absorption and adsorption heat pumps, the study and development of their working pairs and cycles.

本文叙述了升温型吸收和吸附式热泵的工作原理，热泵工质对及热泵循环系统的研究与进展状况。

youdao

She became interested in anthropology -- the study of the origin, development and actions of humans.

VOA: special.2009.02.22

"We're proposing that health researchers get involved in projects like housing, like economic development, certainly educational projects, and study the health effects hopefully the health benefits of these complex social, economic interactions.

VOA: special.2009.07.20

Overall responsibility for the design and implementation of the study was given to the National Institute of Child Health and Development, with input from a number of advisory and oversight committees, the Director of the NIH, and with the involvement of other government agencies (the Department of Health and Human Services, the Centers for Disease Control and Prevention, and the Environmental Protection Agency).

FORBES: What Caused A Billion Dollar Federal Study Of Child Health To Implode?

The results were surprising, and may be disappointing for people who believe mothers and fathers should share equally in the caregiving for their children, said Sarah Schoppe-Sullivan, co-author of the study and associate professor of human development and family science at Ohio State University.

FORBES: Dad's Off The Hook? Study Says Fathers Should Be A Little Less Involved In Parenting

The ongoing study on the environmental impact of industrial development around Lumbini was also reviewed and the final findings of the study will be shared later.

UNESCO: Series of UNESCO events highlight potential and challenges of Lumbini��s development | United Nations Educational, Scientific and Cultural Organization