Er Solution Reference Material Er单元素溶液标准物质
Standard Solution of Er 铒元素溶液标准物质
Xing er Kang Oral Solution 小儿康糖浆
Xiao er Kechuanling Oral Solution 小儿咳喘灵口服液
This paper introduces the fan and chasm traps in ER models, analyses the causes and problems of connection traps, and presents the solution for the problems.
介绍了实体-联系模型中出现的扇形陷阱和深坑陷阱，分析了两种连接陷阱产生的原因及导致的后果并提出了问题的解决方法。
The flavonoid in Pu 'er tea has the strong oxidation resistance to the lard, and has the dose effect relations with the flavonoid solution concentration.
普洱茶中黄酮类化合物对猪油具有较强的抗氧化作用，并与黄酮溶液浓度具有剂量效应关系。
It's a temporary solution when you are reluctant or find it difficult to use tw-itt-er.
这是一个你不愿意使用推·特或感到使用它很困难的时候的临时解决方案。
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