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1. |
What is the packing density of plate and frame module? |
A. | 100-400m<sup>2</sup>/m<sup>3</sup> |
B. | 500-100m<sup>2</sup>/m<sup>3</sup> |
C. | 200-400 m<sup>2</sup>/m<sup>3</sup> |
D. | 500-1000 m<sup>2</sup>/m<sup>3</sup> |
Answer» B. 500-100m<sup>2</sup>/m<sup>3</sup> | |