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当使用~ ( 238 ) Pu作示踪剂, 强度在0.29dpm时, 回收率为77±10%.用英语怎么说？

当使用~ ( 238 ) Pu作示踪剂, 强度在0.29dpm时, 回收率为77±10%.

When ~ ( 238 ) Pu is used as a tracer, its recovery is 77±10 %, with activity being 0.29 dpm.

相关词汇
when is used as tracer its recovery with activity being DPM

when

adv. 什么时候，（用于时间的表达方式之后）在那时，其时，当时；conj. 在…时，既然，如果；pron. 什么时候，那时；n. 时间，时候，日期，场合；

is

vt.& vi. 是（be的三单形式；n. 存在；

used

adj. 用过的，习惯于，二手的，旧的；v. 使用（ use的过去式和过去分词），常常，经常；

as

adv. 同样地，一样地，例如；prep. 作为，以…的身份，如

tracer

n. 追踪者，描图者，（铁笔等）绘图工具；

its

pron. (it的所有格形式)它的，厥；

recovery

n. 恢复，复原，重获，痊愈，矫正；

with

prep. 和，跟，随着，关于，和…一致；

activity

n. 活动，活跃，敏捷，活动力，教育活动；

being

n. 存在，生物，人，要素，本质；

DPM

disintegrations per minute 衰变/分；
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