对于等级1，没有完整的脱碳。外围任何点的部分脱碳深度不得超过表1中的数值。

For grade 1, no complete decarburization shall be present. The depth of partial decarburization at any point on the periphery shall not exceed the value in table 1.

youdao

部件上有密布(稀疏但附着力很强)鳞片和脱碳痕迹，至少在部分区域如此。

E. g. There is tight (or thin and highly adherent) scale and decarburization, at least in certain areas.

youdao

部件上有密布（稀疏但附着力很强）鳞片和脱碳痕迹，至少在部分区域如此。

There is tight( or thin and highly adherent ) scale and decarburization , at least in certain areas .

youdao