Metric of the Superposition of a Schwarzschild Black Hole and a Semi-infinite Rod:Vacuum C Metric

By using a coordinate origin translation and a scale transformation,of which both are constants,the metric of the superposition of a Schwarzschild black hole(SBH)and a semi-infinite rod(SIR)is transformed to the standard form of a vacuum C metric(VCM)in Weyl coordinate system,and for this reason the metric is a VCM exactly.Expressions of mass and acceleration parameters in the VCM are obtained.The expressions show,as a result of the superposition,both the mass of the SBH and the acceleration parameter of the SIR take very great and complex changes.