This initial layer formed of both cellulosic and non cellulosic materials is called the primary wall.

这个原始的管状结构，由纤维素和非纤维物质构成，称作初生层。

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This initial layer, formed of both cellulosic and noncellulosic materials, is called the primary wall.

这个原始的管状结构，由纤维素和非纤维物质构成，称作初生层。

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TEM images showed that cell wall of the fibre is typically divided into three layers including the primary wall (p), the middle lamellar (ML) and the secondary wall (S1, S2 and S3).

纤维细胞壁的超微结构典型地分为胞间层(ML)、初生壁(P)、次生壁外层(S1)、次生壁中层(S2)及次生壁内层(S3)。

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The advent of American silver triggered an economic boom in China that dovetailed with a vast increase in population. (Silver was critical in paying for the construction of the Great Wall.) Spanish silver coins also became the primary currency of the North American colonies.

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In the second room, a portion of the wall is covered with large health department posters promoting family planning, primary healthcare and immunisation - a sign of how central her work has been to her life.

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On Tuesday, he said the Fed would consider extending its direct lending window to Wall Street companies (aka, primary dealers typically not allowed to borrow directly from the Fed) beyond a mid-September deadline to promote stability, as long as short-term debt markets continue to be severely constrained by the credit crisis.

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