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振痕间距 (Even under conditions of a non-varying casting speed and oscillation frequency, oscillation mark spacing increases as the level in mold rises and decreases as the level falls. 即使在拉坯速度和振频都不变化的条件下,振痕间距也会随着结晶器液位的升高而增大,结晶器液位的降低而减小。) |
oscillation mark spacing: 2 phrases in 1 subject |
Metallurgy | 2 |