“principal normal”的概念、定义、翻译、参考文献-科学参考

单词	principal normal
释义	principal normal [`prin·sǝ·pǝl `nȯr·mǝl] ^MATHEMATICS The line perpendicular to a space curve at some point which also lies in the osculating plane at that point.
随便看	BWG BWO BWR BX cable byerite Byers process byon bypass bypass capacitor bypass channel bypass condenser bypass filter bypass valve by-product Byrrhidae Byrrhoidea bysmalith byssinosis byte byte addressable computer byte mode byte multiplexor channel byte-oriented protocol by the head by the stern

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