Our compact, lightweight and travel-approved portable oxygen concentrators are designed to free patients from heavy tanks, managing tank refills or being tethered to stationary systems.

我们的小型化，轻量化和旅游批准的便携式制氧机是由重型坦克，管理箱笔芯或者被拴到固定的系统，对自由的患者。

Using tanks and heavy artillery, they seized the town.

他们使用坦克和重炮攻下了这座城市。

The U.S. has used ships to bring most of its heavy material, like tanks, to the region.

美国已用船把坦克等大多数重型物资运到了该地区。

Tanks are heavy on fuel, destructive to roads and difficult to park.

坦克耗油量大，对道路有破坏性，并且难以停放。

The Syrians had to fight their way across Israeli fortifications and anti-tank ditches on the Golan Heights in 1973, and suffering very heavy losses from hull-down, dug-in Israeli tanks.

1973年，叙利亚人不得不在戈兰高地上与以色列的防御工事和反坦克壕沟苦战，藏在工事里的以色列坦克，让他们遭受了非常沉重的损失。