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| Morphology of the sample present a state of laxity and porous and shape of crystalline grain was needle,the length of needle was about 00nm, diameter of the needle was below 80nm. |
中文意思：
制备产物的形貌呈疏松多孔状,晶粒形状为针状,长度有00 nm左右,直径在80 nm以下。 |
以下为相关句子列表(点击查看，可以看对应的解释）：
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