不发生 nonoccurrence
- 如果,这个值是稳定的那么,无论误差多大,微分动作是不发生的。
If the value is steady, whatever the offset, then derivative action does not occur. - 他们通常不发生在确定的频率,而是通过一个特定的调治,来确定无线电波。
They do not occur in a decided frequency, but rather through a special modulation, the radio waves identity. - 阀门是承受内压的机械产品,因而必须具有足够的强度和刚度,以保证长期使用而不发生破裂或产生变形。
Valve is under pressure of mechanical products, which must have sufficient strength and rigidity to ensure the long-term use without cracking or deformation occurred.
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