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折彎后銅帶脫皮 |
點(diǎn)評(píng)
相互學(xué)習(xí),沒關(guān)系的。你去找要活樹枝,每隔一會(huì)彎幾度,和一下子彎,這二種方法,當(dāng)都彎到小于90度時(shí)再觀察也許靈動(dòng)來了哈。
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