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词汇
underclass
类别
英汉汉英翻译词典
释义
underclass
underclass
[ˈʌndəˌklɑ:s]
adj.
1.
■
[美]学院[中学]一、二年级学生的
词性变化
underclass
[ˈʌndəˌklɑ:s]
n.
1.
■
(通常指由贫困的少数民族构成的)下层阶级
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piston rod thrust
piston rotary pump
piston skirt
piston skirt expander
piston slap
piston sleeve valve
piston slipper
piston spring
piston stay-bolt
pistonstem
piston stop
piston stop washer
piston stuffing box
piston supercharger
piston throttle
piston top
piston travel
piston-tuned circuit
piston-type actuator
piston-type applicator
piston-type damper
piston-type indicator
piston-type poppet valve
piston-type pressure regulator
piston-type pump
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更新时间:2026/7/14 0:18:57