un·der·shoot /ˌʌndɚ/
(vt.)射擊近于負脈衝信號
undershoot
下衝; 負尖峰
Un·der·shoot v. t. To shoot short of (a mark).
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undershoot
v 1: fall short of (the runway) in a landing; "The plane
undershot the runway"
2: shoot short of or below (a target) [ant: overshoot]
[also: undershot]