He grabbed at a protrusion of rock with his right hand.他用右手抓住了一块凸起的岩石。A similar rocky protrusion was noticed in the north apse.在北侧半圆壁龛另有一块相似的石头.But the retrusion of alveolar mandible led to chin protrusion.前颅底和下颌骨发育正常,而下...
Non - modulating valves are also controlled and monitored by the control system.非 调节阀,也控制和监察控制系统.We study numerically the effect of signal modulating noise in bistable stochastic dynamical systems.用数值方法研究了双稳随机动力系统的信号调制噪声...