A folded box with bottom and top flap concur in the middle according to FEFCO 0201 is to be used.

按照FEFCO 0201，使用底端和顶端都具有对开盖板的折叠纸箱。

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Some hide the "Made in China" label in the bottom of an inside pocket or stamped black on black on the back side of a tiny logo flap.

有一些是将“中国制造”标签藏在袋子里面的底部，或者在一个很薄的商标牌黑色的背面打上黑色的印记。

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Meanwhile, the flap valve can be used to adjust weight, spring tension and the bottom outlet valve flap valve opening size to determine the pressure and open and close time.

同时，可以利用调整阀瓣的自重、弹簧的弹力以及阀瓣的底孔大小来确定阀门的开启压力和启闭时间。

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On the bottom edge is a trick flap that's both a micro-USB socket and a USB Type A plug depending on how it's positioned -- the micro-SIM slot is cleverly hidden behind it.

ENGADGET: Topic: Mobile