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。
The 'V' cut in the main flap (top arrow) creates a kind of vortex, which energises the airflow under the car's central section.
在主翼片的上方开出了一个“V”型的切口用以产生涡流，为流过赛车中央部分下方的气流增加动力。
The top surface, as a flap or strip, of a box containing a commercial product, typically bearing identification and used to prove the date or fact of purchase.
装有商品的盒子的顶部表面部分，如盖口或长条。如带有识别标记并可用来以此证明购买的日期或事实。
But this time there is a stop block valve to prevent valve flap over top dead center and open.
而这时阀内有一个停止块来防止阀瓣超过上死点而打开。
But this time there is a stop block valve to prevent valve flap over top dead center and open.
而这时阀内有一个停止块来防止阀瓣超过上死点而打开。
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