leeway[
'li:wei]
n. 
压差,

压

,

容许

误差, 余
leeway[ noun ]- (of a ship or plane) sideways drift
<noun.process>
- a permissible difference; allowing some freedom to move within limits
<noun.attribute>

Leeway \Lee"way`\ (l[=e]"w[=a]`), n. (Naut.)
The lateral movement of a ship to the leeward of her course;
drift.