- ballistic lead
- 弹道: trajectory; pathway; path; b ...
- 提前: shift to an earlier date; mo ...
- 量: measure capacity
- 高低弹道提前量: elevation ballistic lead
- 提前量: aiming for lead; aiming leeway; aiming off; aiming-off allowance; firing lead; initial lead; timing advance; track off; track-off
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