问题描述：
英文图纸上看不懂的地方
是图纸表格里的部分
ISS alteration E.CH.NO SIG.
1 cross ref A19259 added R51633 deltd 19493 K.R.G.
2 ‘C'licensee added 20842 D.J.J.
3 redrawn drain added 22421 I.R.
3A 'CH'licensee added 27772 D.J.J.
3B weight added retraced 29127 D.J.J.
3C ‘S'licensee added 30049 D.J.J.
4 top clearance dimension added 38238 A.W.
是图纸表格里的部分
ISS alteration E.CH.NO SIG.
1 cross ref A19259 added R51633 deltd 19493 K.R.G.
2 ‘C'licensee added 20842 D.J.J.
3 redrawn drain added 22421 I.R.
3A 'CH'licensee added 27772 D.J.J.
3B weight added retraced 29127 D.J.J.
3C ‘S'licensee added 30049 D.J.J.
4 top clearance dimension added 38238 A.W.
问题解答：
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