钟形口

During this period, the respective removal of chemical oxygen demand, suspended solid, ammonion NH4(superscript + reached around 86%, 77%, and 91% respectively, while the F/M was around 0.12 kgCOD/kgMLSS-day. The effluent was clear, highly transparent and odorless. The microscopic observation showed that amount of Ciliata, such as Vorticella Convallaria, Vorticella Alba, and Vorticella Microstoma, could be found in the reactor's supernatant.

以显微镜观察微生物相时有固著型纤毛虫类出现，所谓活性污泥指标微生物，如白钟虫、钟形虫、小口钟虫、甚至旋轮虫等原生动物，污泥胶羽能凝聚成团、颗粒大、结构紧密、沉降性佳、处理水质清澈、透视度佳、无臭味。

Flatten uroflow curves were seen in all patients with marked meatal stenosis. A bell-shaped flow curve was obtained in most patients after urethroplasty using oral mucosa graft combined with a local flap. The peak flow was within the normal range. The flow curve was obviously flat in patients with urethral stricture. The maximum flow rate was low and the voiding time prolonged apparently.

尿流率曲线低平的患者，均伴有明显的尿道外口狭窄；口腔粘膜片移植与局部皮瓣耦合再造尿道修复尿道下裂的患者，多数恢复了接近正常的钟形尿流率曲线，最大尿流率在正常范围：尿道下裂术后尿道狭窄的患者排尿曲线明显低平，最大尿流率降低，排尿时间延长。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。