Unsymmetrical dimethylhydrazine (UDMH) is the main fuel of liquid rocket propellant. Stress is always laid on the pollution of UDMH to water.
偏二甲肼（UDMH）是液体推进剂的主体燃料，其对水体的污染一直倍受重视。
Unsymmetrical dimethylhydrazine (UDMH) is the main fuel of liquid rocket propellant. Stress is always laid on the pollution of UDMH to water.
偏二甲肼（UDMH）是液体推进剂的主体燃料，其对水体的污染一直倍受重视。
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