因为书店可能会改变折扣，或者折扣只适用于选定的存货，所以这样一个解决方案可能会太刚性了。
Because the bookshop could change the value of its discount or apply it to only a selection of its stock, such a solution would likely be too rigid.
针对本工程为重型钢结构，对厂房采双层格构式刚性支撑方案，单位面积用钢量节省10%左右。
In view of this project is the heavy steel structure, picks the double-decked trellis type rigidity support plan to the workshop, the unit area saves about 10% with the steel quantity.
针对本工程为重型钢结构，对厂房采双层格构式刚性支撑方案，单位面积用钢量节省10%左右。
For this project is a heavier steel structure, plant production double-layer lattice rigid support scheme, the amount of steel per unit area save about 10%.
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