A network of dark, dense clouds of dust and gas sprawls across the constellation Vela.
黝黑浓密的尘埃和气体云形成的网络蜿蜒着穿过了船帆座(constellation Vela)。
Presence of water, oil, dust and acid substances in the compressed air network, causes corrosion problems and equipment failures, with consequent loss of production.
存在的水，油，灰尘和压缩空气网络酸性物质，使腐蚀问题，并与相应的生产设备故障损失。
Complex terrain of network design, dust source points sealed design and the choice of devices, mobile sources dust-dust control and grass control are the key link.
复杂地形的管网设计，尘源点的密封装置的设计和选用，移动尘源的粉尘扩散控制以及二次扬尘的控制是整个工程中的重点和难点。
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