| 释义 |
- 活动中心：车床的主轴上高速旋转的工件固定点，用于加工。
1 [机]?活顶尖 ... live 活动的，有效的 live center 活顶尖 load 负荷，载荷 ... 2 ?活动顶尖 ... 动轴 live axle 活动顶尖 live center 活结 live knot ... 3 [机]?回转顶尖 回转顶尖（LIVE CENTER）,产品,中国,山东省,生产商,其它工具,工具... 4 ?活项尖 ... 车锥度附件 Tapet turning attachment 活项尖 Live center 丝杆防护罩 Leadscrew cover ...
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Host families are mainly in Zones 2, 3 and most hosts don't live in Zone 1 because much of central New York is trading center. 接待家庭主要在第2区和第3区，大多数接待家庭并不住在第1区，因为纽约市中心的大部分地方都是贸易中心。 - 2
If we live in the urban center, we can enjoy convenient traffic and convenient shopping environment. 如果我们住在市中心，我们可以享受便捷的交通和购物环境。 - 3
"You could find wealthy parents buying the latest 'upgrades' for their children, leading to even greater unfairness than we already live with," Marcy Darnovsky, director of the San Francisco Center for Genetics told BBC News. “你会发现富有的父母会为孩子购买最新的‘升级版’，导致生活中已有的不公愈演愈烈。”旧金山遗传学中心主任玛西·达诺夫斯基告诉英国广播公司新闻。
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