The lightning trip-out rate of Shandong province transmission line meets the demand of ministry regulation and it is lower than the average trip-out rate of transmission line in China.
该省线路雷击跳闸率满足部颁规程要求，在全国输电线路中雷击跳闸率也是较低的。
Based on the morphological characteristics of riverbed of tidal estuaries, a calculation formula for the widening rate of the estuarine regulation line is derived.
根据潮汐河口河床形态关系，推导了河口治导线放宽率的计算式。
Based on the morphological characteristics of riverbed of tidal estuaries, a calculation formula for the widening rate of the estuarine regulation line is derived.
根据潮汐河口河床形态关系，推导了河口治导线放宽率的计算式。
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