大脆
大脆-
而在Nb微合金化的基础上，通过控制轧制，则可以大幅度降低脆转温度，实现强度和冲击韧性的同步提高。
On the basis of Nb microalloying , the brittle-ductile transition temperature may be greatly decreased to simultaneously improve strength and impact toughness by means of controll rolling .
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克服了噪音大、易脆断等缺点！
So it take over the disadvantage of load noise , easy broken etc.
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鸣山大枣，果大，质脆甜，品质极优，被列为国家名优品种。
The Mingshan big jujube is a famous native variety of jujube in China .
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利用热处理手段来改善碳化物的析出特征，大幅度降低其脆化效果还较为困难。
It is very difficult by heat treatment to improve the precipitation character of carbide and reduce their brittle effect .