方法野外地质观察和室内测试相结合。
MethodsThe combination of geologic observation in field and indoor testing.
在混响室内测试了轿车轮胎的噪声声级。
The noise level of passenger car tire was measured in a reverberation laboratory.
基于室内测试结果，提出了橡胶沥青技术要求。
Be based on indoor test result, raised requirement of balata bitumen technology.
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