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短语
yolk bag
释义
yolk sac, yolk bag
【胚胎学】
卵黄囊(从脊椎动物胚胎的中肠脐伸出的膨大的胚外囊体,富含卵黄)
卵黄囊(大多数哺乳动物胚胎中不含卵黄的、在胚胎发育早期变为退化器官的同源器官)
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ultrasonic sealing
ultrasonic soldering
ultrasonic stroboscope
ultrasonic testing
Ultrasonic Therapies
ultrasonic therapy
ultrasonic thickness gauge
ultrasonic tomography
ultrasonic transducer
ultrasonic transmitter
ultrasonic welding
ultrasonogram
ultrasonograms
ultrasonograph
ultrasonographer
ultrasonographers
ultrasonographic
ultrasonographies
ultrasonographs
ultrasonography
ultrasonologist
ultrasonometry
ultrasonoscope
ultrasound
ultrasound diathermy
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更新时间:2026/8/26 8:35:24