็ดๅฐบ
็ดๅฐบ, straight ruler
็จไบๆต้้ฟๅบฆๆ็ป็ด็บฟ็ๅฐบๅญใๆฏๅจๅญฆๆ กๆๅๅ ฌๅฎคๆๅบๆฌไฝฟ็จ็ๆๅ ทใ
้ๅธธ้ฟๅบฆไธบ30ๅ็ฑณๆ15ๅ็ฑณ๏ผๅนถๅๆถๆ ๆๅ็ฑณ๏ผcm๏ผๅ่ฑๅฏธ๏ผinch๏ผๅปๅบฆใ้ๆๅกๆๆ่ดจ็ๆไธบๅธธ่งใ
This is a ruler used for measuring length or drawing straight lines. It's a basic stationery item used in schools and offices.
They are usually 30cm or 15cm long and have both centimeter (cm) and inch markings. Most rulers are made of transparent plastic.
ๅฐบๅญ่ขซ่ฎคไธบๆฏๅ็กฎๆงๅ็ฒพๅฏๅบฆ็่ฑกๅพใๅจๆฐๅญฆใ็งๅญฆใ่ฎพ่ฎก้ขๅๆฏๅฟ ไธๅฏๅฐ็ๅทฅๅ ท๏ผๅฐคๅ ถๅจๅปบ็ญๅธๅ่ฎพ่ฎกๅธ็ๅทฅไฝไธญๆฎๆผ็้ๅธธ้่ฆ็่ง่ฒใ
ๅณไฝฟๅจๆฐๅญๆถไปฃ๏ผๅฐบๅญ็ๅ่ฝไพ็ถ้่ฆใๅจCADๆๅพๅฝข่ฎพ่ฎก็จๅบไธญ๏ผๅฐบๅญๅทฅๅ ทไนๆฏๅฟ ๅคๅ่ฝใๅฎไฝๅฐบๅๆฐๅญๅฐบๅๆไผ็ผบ็น๏ผๆ นๆฎๆ ๅต้ๆฉไฝฟ็จใ
่กจๆ ็ฌฆๅท็ปๅ
็ดๅฐบ็็ธๅ ณ่กจๆ ็ฌฆๅท
ํ์ํ ์ด๋ชจ์ง๊ฐ ์์ต๋๋ค.