Emitters on trickle system can be blocked by precipitate.灌溉系统中的发射器会被沉积物所堵塞.Clouds usually precipitate as rain or snow.云常会凝结成雨或雪.Systemic use of the anti - muscarinic agents can also precipitate glaucoma in such predispos...
破坏性和恶性的绒毛膜上皮癌往往是葡萄胎所引起.The destructive and malignant neoplasms of chorionic epithelium often arise from hydatidiform moles.目的:提高人绒毛膜促性腺激素 ( HCG ) 的活性回收率,简化HCG的纯化步骤.AIM To improve the purification method of Human Chorioni...