n.堿
名詞復數(shù): alkalis
/">GRE英語詞匯單詞大全noun
1. any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water
e.g. bases include oxides and hydroxides of metals and ammonia
Synonym: base
2. a mixture of soluble salts found in arid soils and some bodies of water
detrimental to agriculture
1. 堿
An alkali is a substance with a pH value of more than 7. Alkalis form chemical salts when they are combined with acids.
1. 堿:在歐洲的煉金術(shù)文獻中,有許多從阿拉伯語和波斯語借用的詞匯,它們通常以音譯的形式出現(xiàn),如:硫(abric),堿(alkali),錫(alcazdir),酒精(alcohol),氯化銨(almizadir),硼砂(anticar),脂肪酸鹽(asabon),獅子(ased),熔爐(athanor),
2.
2. 堿,強堿:hydrogen sulfide 氫化硫 | alkali 堿,強堿 | ammonia 氨
3. 堿性,強堿:Alignment check 定位檢查 | Alkali 堿性,強堿 | Alkali degreater 堿脫油劑
4. [化]堿:alcohol thermometer 酒精溫度計 | alkali [化]堿 | anti-fogging agent 防霧化劑
以上就是本站詳細整理的詞語alkali是什么意思的翻譯解釋,供大家參考一下。
The alkali halides can be grown into large crystals of excellent transparency.(堿金屬鹵化物能生長成具有優(yōu)良透明性的大晶體。)
The influences of curing temperature and alkali contents of cement on expansion of mortar bars are investigated.(研究了養(yǎng)護溫度和水泥堿含量(質(zhì)量分數(shù),下同)與硅質(zhì)集料砂漿試樣膨脹的關(guān)系。)
The valence atom of an alkali-metal atom has two states.(堿金屬原子的價原子具有兩種能態(tài)。)
The extremely salty, alkali lake holds little life, but its waters are a favorite spot for wading birds.(其味極咸,堿湖保存了湖中的小生命,但其水域仍為涉水鳥所喜歡的地方。)
Anticorrosion: the material for polymer, can completely prevent acid and alkali salt of erosion.(防腐:本物質(zhì)為高分子聚合物,能徹底防止酸堿鹽的侵蝕。)
Nickel has a high corrosion resistance to acid and alkali, rust and heat resistance at high temperature.(鎳對酸堿有較高的耐腐蝕才能,在高溫下有防銹和耐熱才能。)
The optimal conditions for synthesis of alkali green 4 include the carbamide and zinc chloride as catalyst, chloranil and bichrome.(合成堿綠色4的最佳條件包括:尿素和氯化鋅作為催化劑,四氫呋喃和雙色。)
Regional experiments in each county of Hetao provide scientific basis for large area planting in the North landlocked saline-alkali area.(通過在河套灌區(qū)各旗縣的區(qū)域試驗,為在北方內(nèi)陸鹽漬化地區(qū)大面積種植提供了科學依據(jù)。)
Also there are many ancient trees, which would have been damaged by the alkali from the cement. We have had to install a special irrigation system.(還有,這里有許多古樹,水泥的堿會損壞這些它們,我們不得不安裝一個特殊的灌溉系統(tǒng)。)
Another example is methyl orange, which is red in acids and yellow in alkali solutions.(另一個例子是甲基橙,它在酸性溶液中為紅色而在堿性溶液中為黃色。)
The limitless alkali of the Arizona plains.