I would think that it's a problem without substantiation in large population studies.

没有大样本的人群研究结果作为支持，研究本身就会产生一些问题。

Thisis empirical substantiation for the old cliche that conservatives justdon't care about the poor, right?

这是对保守主义者不关心穷人这一陈词滥调的又一个经验证据，对吗？

Promotion should be capable of substantiation either by reference to the approved labeling or by scientific evidence.

药品推广信息应能通过对已经批准的药品说明书或科学证据的引用而得到证实。

A substantiation analysis has been made with many sampled data and training results indicate that the network prediction has less error.

利用实际样本数据进行实证分析，训练结果表明网络预测误差小。

The components are multi-curved surface shells and advanced tools such as substantiation are adopted in 3D modeling, simplifying operations.

零件为曲面较多的壳体件，三维造型中采用了“实体化”等高级工具，简化了操作。