Objective To observe the effect of full thickness lamellar keratoplasty combined with PTK ( photo therapeutic keratectomy ) . 目的探讨联合 PTK 的全厚植片深板层角膜移植术的疗效.
日子一天天过去，花粉干结成了硬块。As the day goes on, the pollen dries up and becomes hard.伤口的血在他脸上结成了硬块.Blood from the wound had caked on his face.疲乏的肌肉上有时会起硬块.A knot sometimes forms in a tired muscle....
Managers have discovered that telecommuting revitalizes their skills.经理们发现远距离工作为他们的技术注入了新的活力.I am experienced, and technology precedes is the precondition that revitalizes agriculture and key.我体会, 科技领先是振兴农业的先决条件和要害.Accor...
Ink particles attach themselves to air bubbles and rise to the surface.墨汁颗粒附着在气泡上，浮到表面上。Under certain conditions, electrons can behave like waves rather than particles.在一定条件下，电子可以作波状运动，而不是粒子状运动。Small particles adhere to ...