求翻译：在几种淬火温度中，随保温温度的提高，饱和磁致伸缩应变呈现先增后减的趋势，并且得到770℃淬火的饱和磁致伸缩应变是最大的，达220ppm，但这并没有超过铸态的合金。是什么意思？

Several quenching temperature, with the increase of holding temperature, the saturation magnetostriction strain showing decreased after increasing trend, and 770 ℃ saturation magnetostriction strain hardening is the largest, up to 220ppm, but that does not exceed the cast state of the alloy.

In a couple of hardened temperature, the temperature of the warm, saturated magnetostrictive strain first appeared after the trends, and the quenching of the 770 °C saturated magnetostrictive strain is the largest, up to 220 PPM, but it did not exceed the state cast alloy.

In several kind of hardening temperatures, along with the heat preservation temperature enhancement, after the saturated magnetostriction strain presents the tendency which increases first reduces, and obtains 770℃ the quenching saturated magnetostriction strain is biggest, reaches 220ppm, but this

Quenching temperature, insulation temperature increase, saturation magnetostriction strain after increasing trend of reduction, and 770 ° c quench saturation magnetostriction of strain is the largest, up to 220ppm, but this did no more than cast alloy.

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