However, the crack detection rate and reliability of these methods need further study.
但是，这些方法的裂纹检出率和可靠性需要深入研究。
Discuss the understand, methods and equipment of betimes character of quality detection in road construction.
简要论述了对道路施工质量检测及时性的认识和方法及设备。
Discuss the understand, methods and equipment of betimes character of quality detection in road construction.
简要论述了对道路施工质量检测及时性的认识和方法及设备。
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