They walked through the trees to a second hut, cunningly camouflaged against airsurveillance.
他们穿过树林来到第二个棚子；这个棚子经过巧妙伪装，空中侦察不到。
2
When toxic or flammable gases may pollution of the intake system is the import of the compressor airsurveillance.
当毒性或易燃气体可能污染进气口的情况发生时，应对压缩机的进口空气进行监测。
3
Surface and airsurveillance has been enhanced by Indian Navy and coast Guard ships and aircraft all along the coast and in all offshore development areas. "the."