寿命估算 Life Expectancy ; lifetime evaluation ; Life expectancy estimates
疲劳寿命估算 estimation of fatigue life ; estimation of fatigue data
电刷寿命估计 brush life estimate
电池寿命估计 battery life estimation
事件寿命估算 Event Life Estimate
估计寿命 expectation of life ; [科技] life expectancy ; expectation ; [科技] Estimated life
寿命估计 life estimate
预估寿命 expected life
可靠寿命估计 life estimating
寿命估计公式 Formula of life expectancy
本文指出,根据有限寿命疲劳强度安全系数法设计出的零件仍然有可能屈服失效。作者建议用寿命计算法和图解估值法代替现有的安全系数法。
This paper indicates that the components, which are designed according to the safety factor method of fatigue strength for the finite life, can also be yielded.
结合哈勃常数和当前宇宙密度估值,团队确定宇宙大约有120亿岁了——与最老的恒星寿命一致。这个发现同时澄清了以前那些估值引起的似是而非的唠叨。
Combining the Hubble constant measurement with estimates for the density of the universe, the team determined that the universe is approximately 12 billion years old - similar to the oldest stars.
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