hollow bit tongs 空心钳
double hollow bit tong 十字空心钳
hollow-bit tong 管状钳
double hollow bit tongs 十字空心钳
hollow boring bit 空心钻头
hollow w bit 空心钻
hollow drill bit 空心钻头
Our products include: magnetic drill, threading machine, hollow bit and rail drill.
经营产品为：磁力钻，攻丝机，空心钻头及钢轨钻头。
Even so, NASDAQ's argument that regulators should view this market globally, not in national terms, rings a bit hollow given how ferociously it competes for listings with the NYSE.
即便如此，纳斯达克争辩到，监管部门应视从全球眼光看这个市场而不仅仅是本国的角度，考虑到与纽交所上市公司的惨烈竞争，这听上去有点空洞。
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