桩冠 桩冠的英文 英语翻译 Logan crown; post crown 拓展翻译 桩冠法pivot clack 桩picket; stakedowel; pivot; post 桩材piling 钟形冠的bell-crowned 钟状冠bell crown 肘钉形冠staple half crown 柱冠pivot crown 铸金冠cast-gold crown