每百分之一的钴在正型铁氧体中所导致的最大与最小的线宽间的差值约为4奥。
For each percent of cobalt the maximum directional variation of linewidth may be of the order of 4 oersted.
这是最常见的一种白血病,占儿童白血病的大约百分之八十。每百万儿童中,有二十到三十个会得急性淋巴细胞白血病。
This is the most common form of the disease and accounts for about 80 percent of all childhood leukemias.
这是最常见的一种白血病,占儿童白血病的大约百分之八十。每百万儿童中,有二十到三十个会得急性淋巴细胞白血病。
This is the most common form of the disease and accounts for about 80 percent of all childhood leukemias.
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