气球 balloon; airballoon 彩色气球 coloured balloon; 测风气球 pilot balloon; 定高气球 constant-level balloon; 氦是一种用于气球的气体。 helium is a gas used in balloons.; 气球吊篮 gondola; aerial car; 气球飞翔运动 ballooning; 气球高度 balloon altitude
They reported results from ozone measurements taken with instruments on the ground , in airplanes , and put aloft in scientific balloons during the previous 27 years 他们报道了在先前的27年间在地面、飞机和科学气球上用仪器进行臭氧测量的结果。