co-base vacuum-pumping

例句：

1. 1. The co-base vacuum-pumping system is essential for maintaining the cleanliness of the air in a laboratory.
   共基真空泵系统对于实验室中空气的清洁至关重要。
2. 2. The co-base vacuum-pumping process involves removing impurities from the air to improveits quality.
   共基真空泵过程涉及从空气中去除杂质以提高其质量。
3. 3.The co-base vacuum-pumping system has been widely used in various industries due to its efficiency and reliability.
   由于其效率和可靠性，共基真空泵系统在各行业得到了广泛应用。