Aircop空中警察(计算机病毒名)airn.空气；天空；空中；感觉；神态；曲调；装腔作势v.晾干；使通风；广播Air Force Letter《空军通信》(行政刊物)air line network航空网air-lift drier提升式气流干燥机air-conductionn.空气传导adj.空气传导的air borne sensor空气传感器aircore betatron无铁心电子感应加速器air dehumidifier空气去湿器air attemperator气冷式调温器air exhaust hole排气孔Air Force Depots空军仓库

1. This bronze bell dates from the 16th century.
   这口青铜钟是在十六世纪制造的。
2. A pull on the rope will make the bell ring.
   一拉绳子钟就响。
3. Between the fibers are many small pockets of air.
   纤维之间有很多小气泡。
4. Methods were proposed to prevent air entrain-ment.
   同时提出了充模过程中防止气泡卷入的措施。