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Security & protection
Related to services concerned with the conception, production and implementation of security and protection systems.
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熱
Agriculture; Animal feed
有能力創建溫暖或增加物質的溫度的能量的形式。是浪費或用於克服摩擦的能量轉化為熱能。熱中的熱量或英國熱量單位 (Btu) 的測量。一個 Btu 是一磅的水一華氏度的溫度升高所需的熱量。 ...
