suction apparatus
网络吸料装置; 吸引器 双语例句 The utility model is a suction force regulating valve of controllable suction apparatus of neurosurgery with continuous and exact regulation of suction force and simple and convenient use. 其是一种可连续、准确调节吸引器吸力，使用简单方便的可控神经外科吸引器吸力调节阀。...