双语例句原声例句
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影响CT球管寿命的非质量因素是指对其使用寿命的长短产生影响的因素。
The non qualitative factors are those which affect CT tube′s service life except tube itself qualitative factors.
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设计使用寿命是指在正常平稳操作及正常维护条件下，基于搪瓷层没有产生失效的这一前提下所确定的容器使用寿命。
The design service life is based on the precondition of G-L Layer failure not occur, on the normal condition of balanced operation and routine maintenance.
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特别适用于令一般矿物质寿命缩短、颜色变黑和容易产生油泥的重复合和高温的操作环境，以及令过滤器寿命缩短的情况下更为适合。
Especially suitable for life, to general mineral to color black and sludge and repeat the operating environment, and high temperature to filter under the condition of life is more suitable.
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The real insurance industry, as I mentioned before, began in the 1600s with the invention of probability theory and with the invention of life tables for-- the invention of actuarial science; but, it grew slowly.
正如我刚才所提到的,真正的保险始于17世纪,这得益于概率论,寿命表以及,精算学的产生,但是,它的发展很缓慢
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