/eɪs; es/
n
1 playing-card with a large single spot, usu having the highest or lowest value in card games 侱点的纸牌（通常在纸牌游戏中点数最高或最低）
*the ace of spades 黑桃侱.
2 (infml 口) person who is an expert at some activity 某些活动中的能手
*[attrib 作定语] an ace pilot, footballer, marksman, etc 王牌驾驶员, 足球健将, 神射手.
3 (in tennis) stroke, esp a service, that is too good for the opponent to return （网球赛中, 尤指发球）得分的一击.
4 (idm 习语) (have) an ace up one's sleeve; US (have) an ace in the hole (infml 口) (have) sth effective kept secretly in reserve 暗中保留的王牌. play one's ace use one's best resource 使出绝招. within an ace of sth/doing sth very near to (doing) sth 差一点儿, 几乎（做）某事
*He was within an ace of death/being killed. 他险些丧了命.

Hawker Pacific Aerospace (short „HPA“) is a MRO-Service (Maintenance, Repair and Overhaul) company which offers landing gear and hydraulic MRO services for all major aircraft types. These include all current Airbus, Boeing, Bombardier and Embraer models as well as Helicopters.