helix
英 [ˈhiː.lɪks]
美 [ˈhiː.lɪks]
- n. 螺旋，螺旋状物；[解剖] 耳轮
星级词汇:
中文词源
helix 螺旋形
来自拉丁语helix,螺旋的，来自PIE*wel,转，旋转，词源同involve,whelk.引申词义螺旋形。
英语词源
- helix (n.)
- "a spiral thing," 1560s, from Latin helix "spiral," from Greek helix (genitive helikos), related to eilein "to turn, twist, roll," from PIE *wel-ik-, from root *wel- (3) "to turn, revolve" (see volvox).
权威例句
- 1. Coil the fibre into a helix.
- 将纤维卷绕成螺旋形。
- 2. Normal, double - helix DNA is spiral, like a loosely coiled spring.
- 正常的双螺旋DNA是螺旋形的, 像一根松松地卷曲的弹簧.
- 3. The helix makes a complete turn every 3.6 residues.
- 每个3.6个残基,螺旋正好转一圈.
- 4. Some biological molecules have the form of a helix.
- 有些生物分子呈螺旋状.
- 5. This is the double helix.
- 这就是双螺旋.
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