空中交通管制 air traffic control ; ATC
空中管制 Air Control ; AirborneOps ; airborne control
中空钢制螺旋桨 Hollow Steel Propeller
中国制冷空调工业协会 CRAA
空中交通管制员 ATCO ; ATC
空中交通控制 [航] air traffic control ; ATC
空中交通管制中心 air traffic control center ; Air Route Traffic Control Center
空中交通管制雷达 air traffic-control radar ; Air Traffic Radar
提出了纺制耐热性好的聚丙烯腈中空纤维膜可能的方法和意义。
It also suggests the method of spinning the heat resistance PAN hollow fiber membrane and its significance.
圆桶状结构连接于锥形板下方，中空，可供植骨，外侧面制有螺纹与腕骨紧密咬合。
The hollow cylinder is designed for bone grafting, and its outer threads ensure a very tight contact between the fusion plate and the carpal bones.
着重研究了热缩聚法中间相沥青制得的中空炭纤维的力学性能。
Especially the mechanical properties of hollow carbon fibers prepared from thermal condensation mesophase pitch precursor were studied.
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