安全减压阀要有标示，标明压力释放级别。
Safety relief valves shall be labeled for relief pressure rating.
军官肩上的标记标明他的级别。
The marks on his shoulder designated the rank of an army officer.
成功通过认证的俱乐部将会收到一份认证文书以及一个标明认证级别的标牌。
The successful Club will receive a copy of the accreditation pro forma as well as a badge which will show the level of accreditation.
成功通过认证的俱乐部将会收到一份认证文书以及一个标明认证级别的标牌。
The successful Club will receive a copy of the accreditation pro forma as well as a badge which will show the level of accreditation.
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