qì / xiàng / zhàn / cè / dé / shān / dǐng / qì / yā / zhǐ / yǒu / qī / bǎi / wǔ / shí / bǎi / pà气象站测得山顶气压只有七百五十百帕。The weather station measured the air pressure at the mountaintop at only 750 hectopascals.