Boolean Searching

“Measurement of the

width of cracks in prestressed

concrete beams”

Formal Query:

cracks AND beams

AND Width_measurement

AND Prestressed_concrete

Cracks

Beams

Width

measurement

Prestressed

concrete

Relaxed Query:

(C AND B AND P) OR

(C AND B AND W) OR

(C AND W AND P) OR

(B AND W AND P)

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