正常对照组和博来霉素模型组注射等体积生理盐水。
The rats in the normal control group and bleomycin model group were injected with the same volume of saline.
所获得的数字化可视人体大脑主要结构的体积等测量数据真实可靠，为构建大脑解剖模型积累了定量资料。
The volume data of the main structure of cerebrum is real and exact, and contributes to the quantitative data accumulation of the cerebral anatomic model.
电梯模型的结构复杂，价格昂贵，很难大量配备，同时还具有体积大、容易损坏和维护困难等缺点。
Elevator model, with complex structure and expensive price, is difficult to equip largely, and has shortcomings, e. g. great size, easy to damage and difficult to maintain.
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