When ordering, specify length of extension rod as determined from table 2.
订购时，请根据表2决定并指明加长杆长度。
Calculation of impulseearthingresistanceof extension grounding rod for transmission poles
输电杆塔伸长接地体冲击接地电阻的计算
Standard accessories include a test hook, extension rod, and compression plate shown below.
标准配件包括挂钩, 伸长干和压缩板。
These sets consist of a coupling which attaches to standard valve stem and an extension rod.
这些装置由可连接标准阀门阀杆得联结器和加长杆组成。
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