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ສືບຕໍ່ເບິ່ງໃຫ້ຟຣີ➞ໃຊ້ເວລາ ໜ້ອຍ ກວ່າ 1 ນາທີເພື່ອລົງທະບຽນແລ້ວທ່ານສາມາດເພີດເພີນກັບຫົວຂໍ້ຮູບເງົາແລະໂທລະພາບແບບບໍ່ ຈຳ ກັດ.

Ears: Their Structure and Care (1963)
This educational film illustrates the structures and functions of the outer, middle and inner ear. Shows the importance of the semicircular canals as organs of balance.
ປ່ອຍຕົວ: Jan 01, 1963
ຄວາມນິຍົມ: 0.001
ພາສາ:
ສະຕູດິໂອ: Coronet Instructional Films
ປະເທດ: United States of America
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