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  1. conduit and duct有咩分別? Conduit : 導水管; 電線管 e.g. sewage conduit : 污水管道 metal conduit : 金屬導管 Duct : 輸送管; (人體內的)管 e.g. tear duct : ...

    分類:社會及文化 > 語言 2011年02月08日

  2. ... secrete. The eyelid provides suction across the eye from the tear duct to the entire eyeball to keep it from drying out. Blinking also ...

  3. ... he/she sings? Then I don't know why. If you mean it happens regularly on a usual siuation, then it could be caused by the blocking of tear du ...

  4. ... (白內障), glaucoma (青光眼), retina detachment (视網膜剝離), and obstruction of tear ducts (淚管塞). Vision Test These tests are...

    分類:社會及文化 > 語言 2013年08月11日

  5. ...narrow the opening of the eye, or the use of punctal plugs which block the duct that drains tears from the conjunctival sac. All these techniques ...

  6. ..._duct_tape.jpg/180px-Cling_duct_tape.jpg Duct tape is a strong tape. Adhesive tape ...type of pressure-sensitive adhesive tape made of easy-to-tea ...