The method of choosing data by free net adjustment makes adjustment accuracy improved greatly, so it is an addition to the method of datascreening by traditional classical adjustment.
这是对传统经典平差数据筛选方法的一种补充，使得平差精度大为提高。
2
It's hard to uproot deeply held beliefs about cancer screening with scientific data.
很难用科学数据来根除人们对癌症筛查根深蒂固的观念。
3
Of 148 countries (28%) that provided data on screening for transfusion-transmissible infections, 41 were not able to screen the donated blood for one or more of the markers.