碱性螺旋-环-螺旋 basic helix-loop-helix ; basic helix-loop-helix,bHLH
螺旋-转角-螺旋 helix-turn-helix ; HTH
套挂螺栓及螺丝 TOGGLE BOLTS ; TOGGLE BOLTS & ACOUSTICAL LAG
螺帽/螺栓/螺丝 Nut/Bolt/Screw ; english Nut/Bolt/Screw
机械螺丝用六角螺帽 HEX MACHINE SCREW NUT
螺栓螺母 bolt and nut ; Bolt nut ; GB DIN ASTM
螺丝、螺帽热处理炉 BOLT NUT AND SCREWS HEAT TREATMENT FURNACES ; BOLT NUT AND SCREWS HEAT TREATMENT FURNA CES
螺旋锔及螺旋圈 SCREW HOOK AND SCREW RINGS
螺丝、螺帽热处理 BOLT NUT AND SCREWS HEAT TREATMENT
双头螺栓螺纹 Stud bolt threads
然而，有一种叫做“静水椎实螺”的田螺，它是同时拥有顺时针和逆时针螺壳的典型代表。
However there is one species of pond snail, Lymnaea stagnalis, which demonstrates examples of both clockwise or anticlockwise spiralling shells.
现代的珍珠鹦鹉螺与古鹦鹉螺的关系备受争议，但它也有类似的结构安排。
Modern pearly nautiluses, whose relationship to ammonites is much debated, have a similar arrangement.
所以你的意思是，我的女儿的指纹之所以有这么多的螺是因为我的也有很多螺？
So you mean that my daughter's fingerprints include a lot of whorls because mine include a lot of whorls?
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