Inhaltsangabe
Language:Chinese.No Binding.publisher:Shandong Science and Technology Pub. Date :2010-08-01 version 1.description:Pages Number: 166 Publisher: Shandong Science and Technology Pub. Date :2010-08-01 version 1. Contents: A basic knowledge of methane (a) What is methane (b) the principle of biogas produced (c) methane fermentation conditions (four ) the use of two b
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