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- A sea bird (Alca torda) of the northern Atlantic, having black-and-white plumage and a white-ringed, flattened bill. 刀嘴海雀：大西洋北部的一種海鳥(niǎo)，（刀嘴海雀）羽毛黑白兼雜，喙扁平且有白圈
- Meanwhile, in Latin America, one will say goodbye to the Free Trade Area of the Americas (FTAA, or in Spanish ALCA). 與此同時(shí)，在拉丁美洲，人們將會(huì )對美洲自由貿易區（FTAA，在西班牙語(yǔ)里是ALCA）說(shuō)聲拜拜。
- AL＝sodium alginate; CA＝carrageenan; ALCA＝sodium alginate plus carrageenan; CONT＝control. The number followed indicated the targeted fat content of raw sausage. 海藻酸鈉；CA＝鹿角菜膠；ALCA＝海藻酸鈉加鹿角菜膠；CONT＝控制組。數字表示生鮮香腸之目標脂肪含量。
- According the results of domestic and foreign research, this article attempted to construct the framework of agricultural life cycle assessment(ALCA) in China. 根據國內外研究成果，嘗試建立農業(yè)生命周期評價(jià)框架。
- NASA and the Associated Landscape Contractors of America (ALCA) have announced the findings of a 2?year study that suggest the common indoor plant may provide a natural way of helping combat "Sick Building Syndrome. 美國國家航空航天局和美國園林產(chǎn)業(yè)聯(lián)合會(huì )發(fā)布了他們研究?jì)赡旰蟮陌l(fā)現：普通室內植物可能提供一種幫助防治“大樓綜合癥”的自然方式。
- ALCA (American Leather Chemists' Association) 美國皮革化學(xué)家協(xié)會(huì )
- 1. A sea bird (Alca torda) of the northern Atlantic, having black-and-white plumage and a white-ringed, flattened bill. 刀嘴海雀：大西洋北部的一種海鳥(niǎo)，（刀嘴海雀）羽毛黑白兼雜，喙扁平且有白圈
- alcloxa 鋁克洛沙
- alca (=alcloxa) 尿囊素氯羥鋁,(=anomalous left coronary artery) 異常左冠狀動(dòng)脈
- Alcaíno 阿爾凱諾
- Alcañas 阿爾卡尼亞斯
- Alcañiz 阿爾卡尼斯
- Alcaçarenho 阿爾卡薩雷尼奧
