...以必须去了解加拿大房屋结构用木材上的分级标章(grade stamp)，在加拿大出厂的房屋结构用木材上都会有这种分级标章(grade stamp)盖在木材上面以表示这个木材的等级及强度合不合适使用在房屋的结构体上。
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When nationalist thugs beat up a Jewish friend, she defaced her grade card, crossing out the stamp that allowed her to sit on the "Aryan" seats.
当一个民族主义流氓殴打一位犹太朋友时，她把自己的成绩卡弄坏，擦去上面允许她坐在“雅利安人”座位上的印章。
After checking and up to the grade, the buyer receive the goods and affix his signature or stamp his unit seal on the seller's delivery order.
验收合格后，需方收取货物并在供方出货单上签字或加盖单位印章。
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