certificate of class信息详情
船级证书，入级证书
certificate of compliance───符合证明，合格证；符合证明；一致的证明；合约完成证明书
certificate of origin───n.货物原产地证明书；[贸易]原产地证书
certificate of completion───完工证明；竣工证明书；[经] 竣工证书，竣工证明；结业证书
certificate of competency───合格证书
class of───等级
certificate of conformance───一致性认证；合格证明
certificate of authority───许可证
certificate of conformity───证明商品符合合同中的规格的证书；符合性证书
certificate of award───[劳经]奖状；[体]奖状
Explosion proof and protection class for instrument shall be met according to the requirements of Technical Specification, and relevant quality certificate documents shall be provided.───必须满足技术规格书对仪表防爆及防护等级的要求，并提供相应的质量证明文件。
In this case you need to know the implementation class because you have to construct an instance of it from the information in the serialized certificate.───在这种情况下，您需要了解实现类，因为您必须从被序列化的证书信息中构建它的实例。
pilot held a current airline transport pilots licence (helicopters and gyroplanes) and a valid class one medical certificate. He had 3, 900 hours of operating experience.───直升机的飞行员具备有效的航空运输飞行员执照(直升机和自转旋翼机)和一级体检合格证明书，并拥有3,900小时的飞行经验。
Certificate of Class A Construction Supervision───工程监理企业资质证书
ICC Interim certificate of class───临时船级证书