Results showed that the LAS and AEO-9 mixtures at the ratio of 1:4 had minimum surface tension and the best synergic effect.

研究表明：几种表面活性剂在混合后表面张力最小，协同作用最显著的是LAS与AEO - 9比例为1∶4的复配溶液。

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The diamond reamer has such advantages as higher machining precision, minimum surface roughness, higher efficiency and longer service life.

金刚石铰刀具有加工精度高、表面粗糙度小、加工效率高、寿命长等优点，能很好满足高精度内孔加工的要求。

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So, for example, we were talking about a threshold frequency as in a minimum frequency of light that you need in order to eject an electron from a metal surface.

举个例子来说，我们谈论的临界频率是，光从金属表面逐出一个电子，所需的最小频率。

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So, for example, we were talking about a threshold frequency as in a minimum frequency of light that you need in order to eject an electron from a metal surface.

举个例子来说，我们谈论的临界频率是,光从金属表面逐出一个电子,所需的最小频率。

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