求翻译：从(a)中3条曲线间的关系不难发现，使支架扩张到相同直径时，CoCr合金支架危险处的等效应力最大，不锈钢支架次之，镁合金支架最小，是什么意思？

From (a) the relationship between the three curves is not difficult to find, so that stent expansion to the same diameter, CoCr alloy stent risk equivalent stress at the most, followed by stainless steel brackets, the magnesium alloy stent minimum,

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During 3 curve relations not difficult to discover from (a) that, causes when the support expands to the same diameter, the CoCr alloy support danger place equivalent stress is biggest, the stainless steel bracket next best, the magnesium alloy support is smallest,

(A) relationship between 3 curve in is not difficult to find, when you bring the bracket into the same diameter, CoCr alloy stent risk equivalent stress at the most, followed by stainless steel stent, magnesium alloy stent minimum,

The relations among 3 curves are easy to find, make the support expand until the same diameter from the (a), support dangerous place by CoCr alloy effect most loud force have, the stainless steel support takes second place, it is the minimum that the alloy of magnesium is supported,