Experimental results indicate that the crack propagation is controlled mainly by the crack tip stress intensity factor range k.
结果表明，裂纹扩展主要受裂尖应力强度因子幅的控制。
Remotely controlled with umbilical cable or radio control gives immediate finger-tip control making one-man operation possible.
可以电缆或无线遥控，使即时控制成为可能。
The overload effects were controlled by various factors such as crack blunting, residual compressive stress ahead of the crack tip and crack closure induced by wake zone plasticity.
过载效应是裂尖钝化、裂尖附近残余压应力和裂尖尾部塑性诱导闭合等共同作用的结果。
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