The self-stress detection methods of concrete-filled steel tube structures are summed up as direct detection method, analysis of calculation method and indirect detection method.

钢管混凝土结构自预应力的检测方法可归纳为直接测试法、计算分析法和间接测试法三种。

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With the suitably mysterious name of "Project 1640, " the new instrument is the first of its kind that's able to directly spot planets orbiting distant suns -- as opposed to existing systems that use indirect detection methods to determine the orbit of exoplanets.

ENGADGET: Project 1640 offers new way to search for planets beyond our solar system