suction effect

This paper describes how to increase the productivity effect of cutter-suction dredgers in the fields of cutting force, dredging pump, gauge pile and exhaust pipe.

本文从绞刀、泥泵、定位桩装置及排泥管等四个方面，论述了提高绞吸式挖泥船生产效率的途径。

Clinical observation on effect of PVC decompressed suction tube with a diameter of 4.4 mm on uterine aspiration of very early pregnancy

直径4.4mm PVC负压吸管在早早孕吸宫术的临床观察

Conclusion High-vacuum discontinuous suction technique showed remarkable effect on treatment of serious decubitus ulcers.

目的应用高负压间断吸引技术治疗严重压疮.

The thermocouple, the secondary instruments and suction system consist of a complete set of suction thermocouple pyrometer, which could effectively reduce the effect of radiation in furnace and exactly and quantitatively measure the temperature of defined point in furnace.

它与二次仪表及抽气系统组成整套的抽气热电偶高温计，能有效的减少炉膛辐射的影响，可以准确的定量测量炉膛内部确定点的温度。

The effect of self-suction pump, and really achieve a " one-draining, life-long self-priming. "

该泵自吸效果好, 真正实现 “ 一次引流, 终生自吸 ”.

Objective To compare the clinical effect between vacuum suction with tube in chest and traditional thoracic drainage on tuberculous exudative pleurisy.

目的比较胸腔置管负压吸引术与传统胸腔穿刺抽液对结核性渗出性胸膜炎的治疗效果。方法对54例结核性渗出性胸膜炎随机分为两组，胸腔置管负压吸引组28例；