2.Fei Lilan apartment includes type of washbasin of the unifinication stage basin, type that hang a wall, fission implement with Feililan bathroom furniture, all component style is consistent, still but freedom of be fond of of basis building layout, individual is combined.
3.The layout and observation scheme of the traverse, relevant point positional error-ac-curacy analysis, main component analysis defining accidental error distribution principle and sen-sitvity analysis searching for cower limit of probable radial displacement are described in this pa-per.
