Nature abhors a vacuum, so if you clear space without filling it back up with something worthwhile, new distractions will creep in.
自然界没有真空，所以如果你在清理空间时不在原处放进什么有价值的东西，新的干扰物就会潜入。
2
Vacuum membrane distillation (VMD) is a new-type membrane separation technology, which has shown clear advantage in different application areas.
减压膜蒸馏技术是一种新型膜分离技术，在许多领域中呈现出明显优势。
3
Series HC (horizontal clear) vacuum Chambers feature a horizontal cylindrical design and a rugged cast acrylic chamber and door. The clear acrylic material allows for a full view of your application.