格式:pdf
大小:171KB
頁數(shù): 2頁
處于干旱風(fēng)沙區(qū)的鹽池縣位于寧夏回族自治區(qū)東部、毛烏素沙漠南緣,屬陜、甘、寧、蒙四省(區(qū))交界區(qū)段;境內(nèi)地勢南高北低,平均海拔為1600m,常年干旱少雨,風(fēng)大沙多,屬典型的溫帶大陸性季風(fēng)氣候,為寧夏中部干旱帶。該地區(qū)光照時間長,光熱資源充
格式:pdf
大?。?span class="single-tag-height">64KB
頁數(shù): 10頁
福建農(nóng)林大學(xué)課程論文 0 目錄 1.摘要 ````````````````````````````````````````````````````````````````````````````````````````1 2.關(guān)鍵詞 `````````````````````````````````````````````````````````````````````````````````````1 3.引言 ````````````````````````````````````````````````````````````````````````````````````````1 4.正文 4.1果蔬罐頭的分類及原料 4.1.1分類 `````````````````````````````````````````````````````````````````````````