English stresses can be divided into three levels: main stress, secondary stress and zero stress.

英语的重音可分为三个级别: 主重音 、 次重音与零重音.

期刊摘选

The source of pipe line secondary stress check condition is the stability condition.

管道二次应力校核条件来源于结构的安定性条件.

期刊摘选

Unlike loading condition of secondary stress which cause distortion , peak stresses cause no significant distortion.

与引起二次应力的载荷不同, 峰值应力对管道来说产生的破坏性不重要.

期刊摘选