| 1. | The hong kong observatory has been using meteorological balloons for upper - air measurement since 1921 . the weather information obtained is used for weather forecasting and aviation purposes
香港天文台自一九二一年开始利用气象气球探测高空，所得的资料应用于天气预报及航空用途上。 |
| 2. | The hong kong observatory has been using meteorological balloons for upper - air measurement since 1921 . the weather information obtained is used for weather forecasting and aviation purposes
香港天文台自一九二一年开始利用气象气球探测高空，所得的资料应用于天气预报及航空用途上。 |
| 3. | The observatory conducts upper - air measurements three times daily at 8am , 2pm and 8pm at king s park meteorological station . each measurement involves the launch of a meteorological balloon about one - metre wide carrying a radiosonde
每次施放一个约一米直径的气象气球，携带无线电探空仪升上高空，最高可达三十公里(十万英尺)的高度。 |
| 4. | The observatory conducts upper - air measurements three times daily at 8am , 2pm and 8pm at king s park meteorological station . each measurement involves the launch of a meteorological balloon about one - metre wide carrying a radiosonde
每次施放一个约一米直径的气象气球，携带无线电探空仪升上高空，最高可达三十公里(十万英尺)的高度。 |
