-
Jacket: Black low mid or high density polyethylene.
护套：黑色低密度或中密度或高密度聚乙烯。
youdao
-
The radiation effect of high density polyethylene films in the air was studied.
本文研究了空气中高密度聚乙烯薄膜的辐射效应。
youdao
-
The radiation effect of high density polyethylene films in the air was studied.
本文研究了空气中高密度聚乙烯薄膜的辐射效应。
youdao