ไธ่งๅฐบ
ไธ่งๅฐบ, triangular ruler
ไธ่งๅฝข็ๅฐบๅญ๏ผ็จๆฅๆต้่งๅบฆๆ็ป็ด่งใๅจๆฐๅญฆ่ฏพๆๅถๅพๅทฅไฝไธญ็ปๅธธไฝฟ็จ็ๅทฅๅ ทใ
้ๅธธๆ ๆ45ๅบฆๅ90ๅบฆ่ง๏ผๅพๅฎนๆ็ปๅบ็ฒพ็กฎ่งๅบฆ็็บฟใๅจๅปบ็ญๆ่ฎพ่ฎกๅทฅไฝไธญๆฏ็นๅซ้่ฆ็ๅทฅๅ ทใ
It's a triangular-shaped ruler used for measuring angles or drawing right angles. It's a tool frequently used in math class or drafting work.
It usually has 45-degree and 90-degree angles marked on it, making it easy to draw lines at precise angles. It's a particularly important tool in architecture and design work.
ไธ่งๅฐบๅๅฒๆ ไน ๏ผๆฉๅจๅคๅๅๅฐฑ่ขซ็จไบ้ๅญๅก็ๅปบ้ ใๅฎ่ฑกๅพ็ๆฐๅญฆ็็ฒพ็กฎๆงๅๅปบ็ญ็ๅบ็ก๏ผๅณไฝฟๅจ็ฐไปฃ๏ผๅฎ็้่ฆๆงไนไพ็ถๅฆๆ ใ
ๅฆไปๆฐๅญๅทฅๅ ท่ฝ็ถๅ่พพ๏ผไฝๅจๅบ็ก่ฎพ่ฎกๆๆ่ฒ้ขๅ๏ผไธ่งๅฐบไป็ถๆฏๅฟ ๅคๅใๅฐคๅ ถๅฏนๅปบ็ญใๅทฅ็จไธไธ็ๅญฆ็ๆฅ่ฏด๏ผๅฎ่ขซ่ฎคไธบๆฏๅนๅ ปๅบๆฌ่ฎพ่ฎก่ฝๅ็้ๅธธ้่ฆ็ๅทฅๅ ทใ
่กจๆ ็ฌฆๅท็ปๅ
ไธ่งๅฐบ็็ธๅ ณ่กจๆ ็ฌฆๅท
ํ์ํ ์ด๋ชจ์ง๊ฐ ์์ต๋๋ค.