多形晶

The results show that the steel in different solution has better performance of anti-hydrogen induced cracking,there is no cracking inside the steel; micro-cracking on the specimen surface mainly nucleates at pitting corrosion pits and expands along the polygonal ferrite; the expansion mode is mostly transgranular type, and the expansion terminates in acicular ferrite.

研究结果表明：该管线钢在两种溶液中均具有较好的抗氢致开裂性能，试样内部没有发现裂纹；试样表面的微裂纹主要在点蚀坑处形核并沿多边形铁素体扩展，扩展模式多为穿晶型，并终止于针状铁素体。

RESULT: The characteristic parameters of polymorphs and hydrate of betamethasone acetate were identified. CONCLUSION: The polymorphic...

倍他米松醋酸酯产生多晶型的原因是由于分子结构中活泼的羟基，在制备中产生的无定形和较低的温度是倍他米松醋酸酯水化物形成的重要条件。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。