I am a service passport holder and have a valid B1 visa. If I am invited to attend an academic conference in the US and apply for a J1 visa, will my B1visa still be valid?
我持公务护照，并且有有效B1签证。如果应邀去美国参加学术会议，要办理J 1签证，那么我的B1签证还会有效吗？
The paper briefly introduces the principle of sub-network connection protection and the definition of J1 byte. On the ground of that, analyzes the application of J1 byte in the SNCP.
本文主要阐述了子网连接保护（SNCP）的工作原理及J1字节的详细定义，并对J1字节在SNCP保护中的处理方法进行了具体分析。
Based on the acoustic wave sounding of the dam foundation of a water control project, the continuous ratio of J1~J4 inter layer shear zone is infered by analyzing the acoustic velocity anomaly.
以某水利枢纽工程坝基声波探测为例 ，通过声速异常分析 ，对J1～J4层间剪切带连续率进行了推定 ，其部分成果经开挖验证具有一定的可靠性。
Based on the acoustic wave sounding of the dam foundation of a water control project, the continuous ratio of J1~J4 inter layer shear zone is infered by analyzing the acoustic velocity anomaly.
以某水利枢纽工程坝基声波探测为例 ，通过声速异常分析 ，对J1～J4层间剪切带连续率进行了推定 ，其部分成果经开挖验证具有一定的可靠性。
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