如此极其精确的时钟是建立在单一铝离子的快速振动，铝离子就是包含在真空中受电磁场约束的失去一个电子的原子。
Such ultra-precise clocks are based on the quick vibrations of a single aluminum ion, an atom that has lost one electron, held in a vacuum and confined by electromagnetic fields.
真空结晶器属于外压容器，在使用过程中，经常因刚度不足而导致失效，使容器失去了原来的形状，从而影响生产的正常进行。
In the using process, no enough stiffness of vacuum crystallizer led to failure, so it lost the original shape and had a great influence on the normal control of production.
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