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convex spherical lens
释义
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See
lens
convex spherical lens
convex spherical lens
A lens formed of prisms with their bases together (thick at the center and thin at the edge), used for correcting hyperopia.
See also: lens
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family rhamnaceae
family rheidae
family rhincodontidae
family rhinobatidae
family rhinocerotidae
family rhinolophidae
family rhinotermitidae
family rhiptoglossa
family rhizobiaceae
family rhizophoraceae
family rhizopogonaceae
family rhodymeniaceae
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family rickettsiaceae
family roccellaceae
family room
family room over garage
family roridulaceae
family rosaceae
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更新时间:2026/9/16 6:24:06