inert gas backing

例句：

1. 1. The inert gas backing is crucial for the operation of the spacecraft.
   惰性气体支持对于航天器的运行至关重要。
2. 2.The inert gas backing helps to maintain a stable temperature inside the chamber.
   惰性气体支持有助于保持腔室内部稳定的温度。
3. 3.The use of inert gas backing is strictly regulated to prevent contamination during the manufacturing process.
   使用惰性气体支持在生产过程中受到严格监管，以防止污染。