两片在等密度下比较，绿组的表皮剂量比蓝组可降低到57%。
On equal density, green films got less radiation dose than blue films and the dose could be reduced to 57 %.
绿组的同学显然觉得在做出高尚举止之后，其道德价值已经受证实-这允许他们有不道德和不合法的表现。
Having done their good deed, the greens apparently felt they'd proved their moral worth - allowing them to behave immorally and illegally.
我们可以把企业与服务的注册信息分成以下三组：白页、黄页和绿页。
Registry information for businesses and services can be thought of in three groups: white, yellow, and green pages.
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