In practice, the direct application and the indirect application co-exist, and mutual complement.
在实践中，这种直接适用又与间接适用共存，并相互补充。
One of its remarkable characteristics is the mutual dependence and complement of science and technology.
其显著特点之一是科学与技术的相互依存。
One of its remarkable characteristics is the mutual dependence and complement of science and technology.
其显著特点之一是科学与技术的相互依存。
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