名词[军]哑弹; 无用的人或物; 衣服，个人物品

形容词无用的; 不完善的

1. 哑弹：幸运的是,这是颗哑弹(DUD). 所有的人都在挖掘加深战壕,我们使用了所有能弄到手的工具,镐,锹,刀,饭盒(MESSTINS)甚至用手. 当炮弹在附近爆炸的时候,可以看到士兵们惊恐的蜷着身子. 大约到了中午,敌人的炮火减弱了,

2. 但尼丁：但尼丁 (DUD)出发的特价机票 - 快速、全面查询新西兰 (NZ)但尼丁 (DUD)出发的航班有哪些航班从但尼丁 (DUD)机场出发?由但尼丁 (DUD)出发的廉价航班 - 快速、全面查询 - ? Skyscanner Ltd 2002–2009

3. 无导数方法：Dual-spaceplot,对偶空间图 | DUD,无导数方法 | Duncan'snewmultiplerangemethod,新复极差法/Duncan新法

4. 不发弹：Dry-firing [空发练习] | Dud [不发弹] | Dum-Dum [达姆弹头、达姆弹]

1. dud的翻译

1. 不中用的;失灵的;出故障的
Dud means not working properly or not successful.

e.g. He replaced a dud valve.
他换掉了坏阀门。

noun

1. an event that fails badly or is totally ineffectual

e.g. the first experiment was a real turkey
the meeting was a dud as far as new business was concerned

Synonym: turkeybomb

2. an explosion that fails to occur

Synonym: misfire

3. someone who is unsuccessful

Synonym: flopwashout