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water hardening
archit.	水淬 (硬化)
auto.	水冷淬火
biol.	水淬硬化
el.	水淬［硬化］
met.	水中淬火; 油淬水淬硬化
tech.	水淬硬 (化); 水淬 (火)
wind.	水淬
water-hardening
gen.	水淬硬化
met.	水淬; 水中淬火

water hardening: 10 phrases in 3 subjects

Chemistry	1
Metallurgy	6
Technology	3