伴随着隆隆的低沉噪声，螺旋桨开始旋转起来。With a low-pitched rumbling noise, the propeller began to rotate.钻孔机和电锯的噪声过了半夜还继续响着。The racket of drills and electric saws went on past midnight.让受试者通过耳机听“白噪声”。"White noise" was played into the subje...
Saline nasal irrigation is an adjunctive therapy for rhinosinusitis and sinus symptoms.盐水冲洗鼻腔是治疗鼻窦炎和缓解鼻窦症状的一种辅助手段.If small drainage and irrigation, spray, threshing, ginning, Milling, milling, feed, and so crushed.如小型排灌 ...