ewl 中文意思是什麼
ewl
解釋
等效輪壓-
Equivalent wheel load ewl
輪荷重當量 -
The alum in some villages has changed into pf + ewl + wl or pf + ewl
上改後到包產到戶前的農地利用仍然是自給自足的農耕方式。 -
After crsrlo, alum in southern yunnan has continued to experience profound changes. extension of economic woodland, which was in its initial stage before 1949, has been leading the change. pf + dl + wl has been improving into pf + ewl + dl + wl ( ewl ? conomic woodland )
包產到戶以後，滇南的農地利用模式繼續發生深刻的變化，主要特點是原來處于萌芽狀態的園地變成了驅動農地變遷的主導因素，將原來的水田十旱地十林地型改進為水田十園地十旱地十林地型，有的則進一步發展為水田十園地十林地或水田十園地型。
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