Objective the aim of this study was to compare the differences in sampling methods of ct perfusion for soft tissue neoplasms in the head and neck regions.
目的研究不同ct灌注采样方法对头颈部软组织肿块性病变评价的影响。
2
Factors influencing the tensile strength of polymerizer head sample were introduced, which included the sampling position, sampling direction, sampling quantity and the cross section shape of sample.
介绍了影响聚合釜封头试样拉伸性能的因素：取样部位、取样方向和取样数量及试样的横截面形状。
3
To realize a true balance sampling receiver and resolve the pulse leakage of template signal in former receivers, a novel sampling-head is proposed.