Normally dies have to have at least one support ring as the internal pressures are high enough to cause transverse cracking due to tangential or triaxial stresses respectively.

通常当内部压力由于切向或者各个空间应力高到足以发生横向破裂时，凹模必须至少有一个加强圈。

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Piston ring excellent in resistance to scuffing, cracking and fatigue and method for producing same, and combination of piston ring and cylinder block.

有提高的抗擦伤性、抗裂性和抗疲劳性的活塞环，和它的生产方法，以及活塞环和气缸体的组合。

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Screw lock ring heat exchangers as main equipments are used in hydrogenation cracking plant which have many shortcomings.

传统的加氢裂化装置主要换热器采用的是螺纹锁紧环式换热器，存在许多缺点。

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But for the men who make each syllable of "blockbuster" ring with jaw-cracking sound -- Powell, Hans Zimmer, John Williams, James Horner and others -- "It's not as easy as it seems, " Powell laments.

CNN: Helping 'Bourne' rise to the occasion