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knock testing

auto. 汽油爆燃测试
chem. 爆震作用研究
tech. 爆震性试验; 抗爆震性试验
knock test
auto. 汽油爆燃试验测试
pow.el. 爆震性试验
knock-testing
: 4 phrases in 3 subjects
Automobiles1
Chemistry2
Technology1

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