Two types of tissue, red pulp and white pulp, are intermixed. The white pulp is lymphoid tissue containing lymphocyte production centres.
组织的两种类型红髓、白髓交织混合。白髓是包含淋巴球产生中心的淋巴组织；
The Kraft process produces pulp with longer fibers, while sulfite pulp, using lower process temperatures, produces more white pulp with shorter fibers.
牛皮纸工艺生产的纸浆纤维较长，但亚硫酸盐纸浆用较低处理温度生产的纸浆色泽较白纤维较短。
The pathological sections of spleen showed that the areas of white pulp were increased(P<0.01), and the areas of spleen trabecula were decreased(P<0.05).
脾脏病理切片示白髓面积扩大（P<0.01）；脾小梁面积有所缩小（P<0.05）；
The pathological sections of spleen showed that the areas of white pulp were increased(P<0.01), and the areas of spleen trabecula were decreased(P<0.05).
脾脏病理切片示白髓面积扩大（P<0.01）；脾小梁面积有所缩小（P<0.05）；
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