The true engine of job growth in this country has always been the private sector, businesses like Celgard.
WHITEHOUSE: Promoting Jobs and Growth Through Innovation
So it is good to be here at Celgard, and it is good to be back in North Carolina.
Bob is not going to build the roads to get to Celgard.
Celgard是总部设于美国北卡罗来纳州夏洛特生产锂离子电池中央部分所用的聚乙烯和聚丙烯微孔膜（隔膜——有效阻止电子移动而能让离子运动的膜）的公司。
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