目的：探讨准确评定外伤后听力损失程度的方法。
Objective: to explore the method to accurately evaluate the level of post-traumatic hearing loss.
采用质量损失率和断裂强力、断裂伸长等指标，客观评定常温下羽毛纤维的耐化学试剂性能。
The chemical and physical properties of the feather fiber were evaluated with weight loss, breaking strength and breaking elongation.
灾难付款的其余部分将在评定出最终的作物损失后支付。
The remainder of the disaster payments would be issued once final crop losses are determined.
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