Pleas explain "adhering"

[Mechen]

(b) scanner and adhering and guiding mechanism show on BPVC VII-492 EXAMINATION RECORD* please explain the term "adhering". Thanks at advance.

[djx]

in a 2011 eratta* the word "and" was removed so it should read "scanner adhering and guiding ..." I believe this to be the method that the scanner is held to* and guided along* the surface being examined. See table VII-421... the extra word "and" is not present in that location.

[Mechen]

in a 2011 eratta* the word "and" was removed so it should read "scanner adhering and guiding ..." I believe this to be the method that the scanner is held to* and guided along* the surface being examined. See table VII-421... the extra word "and" is not present in that location.

"and" revised by me， you could seek all text， others will shown "and". Only Table

[Mechen]

or I could say " adhering method of guide mechanism"