a matrix of paths的用法和样例：
- The dynamite itself is implanted in a matrix of inert materials.
- Based on the algorithm of the amount and matrix of path of a ventilation network without unidirectional circuits, a further problem is put forward, i.
- After achieving radial network structure planning, the matrix of path of plan area was calculated.The matrix of path reflects construction cost of connected line of distribution network.
- Metabolism is a matrix of two closely interlinked but divergent activities.