wrench hammer
(mathematics) A polynomial of the form displaystyle (1+t)ᶻ(1-t)⁻ᶻ=∑ₙg_n(z)tⁿ.
A wrench with the end shaped so that it can be used as a hammer.
plural of cottonee
Of different genera.
工具箱からハンマー付きレンチを取り出し、釘を打つのに使った。
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