一旦经过冷却和测验，这些钢块就已经准备好用于太空事业和石油钻探这两个十分需要高强度钢材的领域。
Once cooled and tested, the blocks of steel are readyfor use in aerospace and oil-drilling, where high-strength steel is prized.
文中所提出的九种齿轮和蜗轮蜗杆的参数测定公式，经过实测验证是完全适用的。
The formulae given here for measuring the parameters of nine kinds of gears, worms and worm wheels have been proved in practice to be applicable.
TSS量表已经过多国有效性检验和心理学测验，被证明能可靠评价患者及其伴侣对ED治疗的满意度。
The TSS is an internationally valid, psychometrically sound instrument to assess patient and partner satisfaction with ED therapy.
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