macro-crack的意思|示意

The relation of law of the fatigue crack extending and feature of macro-profile is discovered, which provides a new method for the life estimation of the brake disc.

发现裂纹剖面宏观形貌特征与制动盘疲劳裂纹扩展规律之间存在一定的关联，为制动盘寿命评估提供了新的思路。

The macro profile and physicochemical examination of the tread oblique crack shows that the crack falls into the category of rolling contact fatigue type.

踏面斜裂纹及断口的宏观形貌和理化检验与分析表明，踏面斜裂纹伤损属于滚动接触疲劳裂纹伤损类型。

Being the reducing medium, the volume expansion of alloy brings gravitation and crack through analysis and observation of accessory's macro-and micro structure.

经分析与实体零件的宏观与微观组织观察，此现象是因为还原介质渗入，引起合金体积膨胀而产生引力，造成应力裂纹。

There is a macro-crack and micro-crack system in rocks, which affects almost all the mechanical properties of rocks, especially the failure mechanism and the strength criterion.

岩石内部存在一个宏观的和微观的裂隙系统，岩体的一切力学特性几乎都与这个裂隙系统有关，当然岩体的破坏机理与强度准则也不例外。

The feature of macro-profile is analyzed, and the crack initiation and extending mechanism of brake disc is discussed.

分析了制动盘裂纹剖面的宏观形貌特征，并对制动盘裂纹萌生和扩展机理进行探讨。

The numerical simulation results show that the initiation, propagation and linking each other of crack in concrete samples at mesoscale level produce the macro-failure of concrete samples.

数值模拟结果显示混凝土破坏过程实际上就是微裂纹萌生、扩展、贯通，直到宏观裂纹产生导致混凝土失稳断裂的过程。