看到公屏上大佬们激情讨论什么dd,cv.这都是什么，是不同的船吗，求科普

dd是驱逐，cv是航母

DD是小JJ
BB是骂人意思
CV指声优
SS指衣服尺码
CL指动漫clannad

CV Aircraft Carrier 航空母舰
CVN Aircraft Carrier, Nuclear 核动力航母
CVB Aircraft Carrier, Large 大型航母
CVA Aircraft Carrier, Attack 攻击型航母
CVGH Aircraft Carrier, Guided Missile Helicopter 导弹直升机航母
CVL Aircraft Carrier, Light 轻型航母
CVE Aircraft Carrier, Escort 护航航母
CVS Seaplane Carrier (prior to and during WWII) 水上飞机母舰（二战前、二战期间）
Anti-Submarine/Support Carrier (after WWII) 反潜/支援航母（二战后）
CVH Aircraft Carrier, Helicopter 直升机航母
CVV Aircraft Carrier, Vertical Take Off And Landing 垂直起降飞机母舰
AVT Aircraft Carrier, Training Ship 训练航母
战列舰
B/BB Battleship - Usually larger than 20,000 tons and armed with guns of 10" or more.
战列舰－－通常20000吨以上、装甲防护、主炮口径10吋或更大
BM Monitors 浅水重炮舰
巡洋舰
C Cruiser 巡洋舰
ACR Armored Cruiser 装甲巡洋舰
CB Large Cruiser 大巡洋舰
CC Prior to 1961: Battlecruiser 战列巡洋舰（1961前）
After 1961: Command Ship 指挥舰（1961后）
CA Prior to 1931: Armored Cruiser 装甲巡洋舰（1931前）
After 1931: Heavy Cruiser - a cruiser armed with guns 8" (20.3 cm) or larger
重巡洋舰（1931后）－－装甲防护、8吋或更大口径主炮
CAG Heavy Cruiser, Guided Missile - a heavy cruiser converted to carry missiles IBC
重型导弹巡洋舰－－携带导弹的重巡洋舰
CG Guided Missile Cruiser 导弹巡洋舰
CGN Guided Missile Cruiser, Nuclear 核动力导弹巡洋舰
CH Cruiser with an assigned Helicopter直升机巡洋舰
CL Light Cruiser - cruiser armed with guns smaller than 8" (20.3 cm)
轻巡洋舰－－装甲防护、 8吋以下主炮
CLAA Anti-Aircraft Light Cruiser 防空轻巡洋舰
CLC Command Light Cruiser 轻型指挥巡洋舰
CLH Helicoptor Light Cruiser - cruiser with an assigned Helicopter
轻型直升机巡洋舰－－携带直升机的轻巡洋舰
CLK Light Cruiser, Killer (ASW) 反潜巡洋舰
CGH Guided Missile Cruiser with an assigned Helicopter导弹直升机巡洋舰
CLG Light Guided Missile Cruiser - a light cruiser converted to carry missiles
轻型导弹巡洋舰－－携带导弹的轻巡洋舰
CLGN Light Guided Missile Cruiser, Nuclear 核动力轻型导弹巡洋舰
CS Scout Cruiser 侦察巡洋舰
CSG Strike Missile Cruiser 攻击型导弹巡洋舰
驱逐舰
D/DD Destroyer 驱逐舰
DE Destroyer Escort 护航驱逐舰
DDE Destroyer converted to Fleet Escort 护航驱逐舰
DDH Destroyer with an assigned Helicopter 直升机驱逐舰
DDG Guided Missile Destroyer 导弹驱逐舰
DL Destroyer Leader or Frigate 驱逐领舰