4.根据线路图指示，检查IAM 1#为30+ 12.9V。IAM 8#为31- 1Ω。线路正常（见附件）。的翻译：4. under the direction route map, check IAM 1# 30+12.9V. IAM 8# 31-1 w. Line OK (see annex). 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

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4. under the direction route map, check IAM 1# 30+12.9V. IAM 8# 31-1 w. Line OK (see annex).

4. instructed according to the circuit diagram that, inspects IAM 1# is 30+ 12.9V.IAM 8# is 31- 1Ω.Line normal (sees appendix).

4. In accordance with instructions to check line map IAM V 1# for 30 + 12.9 . 8# for IAM Ω 31 - 1. Normal lines (see annex).

4. under the direction route map, check IAM 1# 30+12.9V. IAM 8# 31-1 w. Line OK (see annex).