double helical tooth_造纸英汉词典
double helical tooth
[造纸英汉词典]
double helical toothn.人字齿
是什么意思，double helical tooth的解释，double helical tooth的翻译
n.人字齿
double helical tooth_造纸英汉词典double helical tooth
[造纸英汉词典]
double helical tooth是什么意思，double helical tooth的解释，double helical tooth的翻译
