A.儀器安裝后在既定荷載下,安裝影響消除后的測(cè)值 B.儀器在現(xiàn)場(chǎng)零荷載下的測(cè)值 C.相對(duì)于荷載條件的計(jì)算起點(diǎn)的測(cè)值 D.以上都不對(duì)
A.1020.0 B.1021.0 C.1022.0 D.1023.0
A.±0.72√n B.±0.98√n C.±I.4V√n D.±1.6√n