他们是经过认证的有机和天然棉。
只要有可能，尽量雇佣经过认证的翻译。
Whenever possible, try to use a certified interpreter if one is available.
同时他也是经过认证的划艇教练和抗阻力教练。
Meanwhile, he is also a certified instructor of Rowing and Resistance.
显然，要使这个模型生效，每个用户都必须经过认证。
Obviously, for this model to work each user must be authenticated.
经过红帽硬件认证程序，根据红帽，公司核准。
Approved by Red Hat, Inc., through the Red Hat Hardware Certification Program.
经过性能分析，该认证方案结构简单，执行效率高。
By performance analysis, this scheme has a simple structure and high efficiency.
经过性能分析，该认证方案结构简单，执行效率高。
By performance analysis, this scheme has a simple structure and high efficiency.
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