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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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.

BBC: Pakistan health workers targeted over Bin Laden death

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.

FORBES: Magazine Article

The Wall Street Journal reviewed how RUC shorts primary care and greatly increases the cost of health care nicely in this article.

FORBES: The Bipartisan Plan To Eradicate Family Medicine