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词汇 Dessication
分类 英语词汇 英语翻译词典
释义

Dessication

中文百科

干燥剂 Desiccation

（重定向自Dessication）
氧化钙（生石灰）干燥剂
活性氧化铝
氯化钴
Canisters are commonly filled with silica gel and other molecular sieves used as desiccant in drug containers to keep contents dry; shown here next to a U.S. quarter for size comparison.

干燥剂是指能除去潮湿物质中水分的物质，常分为两类：化学干燥剂，如硫酸钙和氯化钙等，通过与水结合生成水合物进行干燥；物理干燥剂，如硅胶与活性氧化铝等，通过物理吸附水进行干燥。

湿气的管控是与产品的良率是息息相关的，以食品而言，在适当的温度和湿度下，食物中的细菌和霉菌便会以惊人的速度繁殖，使食物腐坏，造成受潮及色变。电子产品也会因湿度过高造成金属氧化，产生不良。干燥剂的使用便是为了要避免多余的水分造成不良品的发生。

英语百科

Desiccation 干燥剂

（重定向自Dessication）
Desiccation cracks in sludge
Centripetal desiccation cracks in the Lower Jurassic Moenave Formation at the St. George Dinosaur Discovery Site at Johnson Farm, southwestern Utah. A dinosaur footprint is at center.
A vacuum desiccator (left) and desiccator (right). Silica gel with cobalt chloride indicator placed in the lower shelf is used as the desiccant.
Callistemon hybrid desiccated by heat and dryness (Sydney)

Desiccation is the state of extreme dryness, or the process of extreme drying. A desiccant is a hygroscopic (attracts and holds water) substance that induces or sustains such a state in its local vicinity in a moderately sealed container.
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