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deltoid

英 ['delt??d] 美['d?lt??d]
  • n. 三角肌
  • adj. 三角形的

英文詞源

deltoid (adj.)
1741, in deltoid muscle, so called for its shape, from Greek deltoeides "triangular," literally "shaped like the letter delta;" see delta + -oid.

雙語(yǔ)例句

1. Construct an animation of the deltoid sliding on two mutually perpendicular lines.
建構(gòu)一動(dòng)態(tài)繪圖:展示三角線沿著互相垂直的兩軸滾動(dòng).

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2. Show how a deltoid of maximal size slides inside a stationary astroid.
在固定不動(dòng)的星狀線內(nèi),有一個(gè)最大的三角線在其間滾動(dòng).

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3. Construct two mutually orthogonal tangents of the deltoid. Where do they meet?
三角星形線的兩條互相垂直的法線的交點(diǎn)在哪里?

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4. Construct rotating cardioid and deltoid while remaining orthogonal to each other.
作旋轉(zhuǎn)的心臟線和旋轉(zhuǎn)的三角線,且彼此維持正交.

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5. Construct an animation displaying the deltoid sliding inside a fixed nephroid.
建構(gòu)一動(dòng)態(tài)繪圖:展示三角線沿著一固定的腎臟線內(nèi)部滑動(dòng).

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