请帮我翻译专业英语，谢谢

1, Report invalid without “special seal for test report ” or “test unit cachet”

2, Copy report invalid without re-stamp of“special seal for test report ” or “test unit cachet”

3, Report invalid without signature of chief controller, examiner and approver.

4, Report invalid with altering.

条令性质的文句可以省略某些谓语和介词等，简洁为上。

1 report without "inspection report format" or inspection unlt is invalid.
2 copy stamped with "not to report, test report format, unit's cachet or inspection is invalid.
3 the report for approval, review, who signed is invalid.
4 report alter invalid.

1、报告无“检验报告专用章”或检验单位公章无效。
2、复制报告未重新加盖“检验报告专用章”或检验单位公章无效。
3、报告无主检、审核、批准人签字无效。
4、报告涂改无效。
1, report no "Seal test" or test unit is invalid seal.
2, the report does not re-copy with the "Seal test" or test unit is invalid seal.
3, the report found no man, examining and approving signatu