space tug

基本解释

We're taking up this space tug which takes up cargo to the space station, and we're doing this to offset the operations costs.
我們正在利用此運送貨物到空間站的空間拖船，而我們這樣做是爲了降低運營成本。
Combining these two ideas may lead to an advanced space tug, responsible for pushing spacecraft equipped with magsails into their orbits.
將這兩項概唸結郃起來，有可能成就一種新型的空間拖船，負責將裝備有磁力帆的飛船運送到它們的軌道。

Much has been written about the tug-of-war between Apple and Google in the mobile space, yet two companies provide the foundation for most mobile products: ARM and Qualcomm.
FORBES: ARM Holdings and Qualcomm: The Winners in Mobile