One is a briefcase in which the attached laptop holder is exposed when the case is unzipped. The other is a wheeled carry-on with a removable laptop case.
一种是当箱包拉开时会暴露放置便携式电脑装置的公文包，另一种是带可拆卸便携式电脑包的轮式手提包。
Disc holder removable for replacement of disc without dismantling the valve - no special tools required.
阀瓣支架可拆卸进行阀瓣更换，无需拆卸阀门，不需要特殊工具。
可拆卸的信用卡持有人。
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