The vacuum systems of oil depots are mostly separated from evacuation systems in our country.

我国现有的成品油库的真空、放空系统大都分开设置。

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Rotary piston pumps always used as backing pumps of vacuum systems in vacuum induction ovens.

真空感应炉真空机组中的前级泵，历来使用滑阀泵。

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PVD coatings involve atom-by-atom, molecule-by-molecule, or ion deposition of various materials on solid substrates in vacuum systems.

物理蒸发沉淀涂层涉及到在真空装置内各种各样的材料原子紧靠原子、分子紧靠分子或离子沉淀于固态基体上。

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In green transportation news we've been tracking everything from wooden bikes to biomethane delivery trucks, to 4, 000 mph vacuum transport tube transit systems.

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The vacuum tube amplifier can also be found in Samsung's home theater systems, beginning with the HT-F6500W, for improved audio clarity and warmth.

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Self-contained vacuum, pump and filter system works without suction lines or other modifications to existing systems.

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