... S 的元素称为 S-元或库所(place),也称为位置,T 的元素称为 T-元或变迁 (transition),F 是网N 的流关系(flow relation),而且弧(Arc)是通过它的指向来 规定局部状态和系统局部的状态。
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control flow relation 控制流结构
Weighted Flow Relation 加权流动关系
water level flow relation 水位流量关系
water level and flow relation 水位流量关系
water height-flow relation curve 水位
mass flow pressure-difference relation 质量流量压差关系
flow-slide relation 水位流量关系
AIM: To analyze incidence of depressive disorder DD and its relation with lesion location, cerebral blood flow and neurological defect in patients with acute or chronic ischemic stroke.
目的:分析急性和慢性缺血性脑卒中患者抑郁障碍的发生率及其与发病部位、脑血流量及神经功能缺陷的关系。
Through experiment, achieved the relation of the flux and the opening degree of the SPF balance valve, protracted the ideal flow characteristic curve.
通过实验,得到了SPF型平衡阀的流量与开度间的关系,绘制了理想流量特性曲线。
The characteristic of traffic company is flow disperses, interface is wide, the relation is daedal .
交通企业的特点是流动分散, 接触面广, 关系错综复杂。
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