They see the fleet of gas-bags, and move toward them.
他们看见了气囊群并飞向它们。
2
Combining the construction practice of Shantou port Guang ao Phase I Project, this paper introduces a new technology of transporting caissons by gas-bags.
结合汕头港广澳一期工程建设实例，介绍沉箱预制现场采用起重气囊出坑、搬运沉箱的一种新工艺。
3
They made gas from wood and plants instead, and then they put it in big bags on top of their cars.