Method of parallel combined testing could increase the diagnostic sensitivity to 90.2%, and serial combined examination could increase the diagnostic specificity to 93.5%.

平行法联合检测可使诊断的灵敏度提高至90．2％，系列法联合检测可使特异度提高至93．5％。

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The interaction between two parallel cracks in rock mass under the combined action of tension and shearing is analyzed by finite element method.

采用有限元法，对岩体在拉剪综合作用下平行双裂纹相互影响的情况进行了计算。

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An alternative method is to transmit the combined digital signal from the parallel channels by frequency or phase modulation of common carrier.

另一种方法是对公共载波调频或调相的方法发送并列信道的组合数字信号。

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