In fact, improper Forged Steel Valves storage is a major reason for valve damage.
而实际上，保管不当是阀门损坏的重要原因之一。
In 2006, the warning was upgraded to a black box warning, the FDA's strongest form of warning, because of new data concerning risks of heart valve damage.
2006年，鉴于有新的数据报道有关药物与心脏瓣膜损伤关系，该警示升级为FDA最强烈警告形式—“黑色方框警告”。
In 2006, the warning was upgraded to a black box warning, the FDA's strongest form of warning, because of new data concerning risks of heart valve damage.
2006年，鉴于有新的数据报道有关药物与心脏瓣膜损伤关系，该警示升级为FDA最强烈警告形式—“黑色方框警告”。
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