Their missile silos are below ground.
他们的导弹井在地。
Their missile silos are below ground.
他们的导弹井在地。
the silos are hardened against air attack.
井被加固以防空袭。
Plymesh aeration pads are used to fluidize and to optimize the flow rate of powdered and pulverized products in silos and in bunkers.
使用复合网通风垫后,地式青槽中的粉末可实现流体化,流速达到最佳化。
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