科技词典字母P1043页 ... positive-displacementscrewtypecompressor正排量螺旋式压气机 positive-displacementsupercharger给定式增压器 positive-displacementtypefuelpump正排量式燃料泵 ...
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positive-discharge bucket elevator 强制排料斗式提升机 ; 混合式卸料斗式提升机
positive-discharge elevator 强制卸载式升运器
positive creeping discharge 正极性沿面放电
positive corona discharge 正电晕放电
positive dc corona discharge 直流电晕放电
All the patients were evaluated with the positive and negative symptoms scale (PANSS) and WHO Quality of Life Survey (WHOQOL 100) before treatment and 1 year after discharge.
于治疗前、出院1年后采用阳性和阴性症状量表(PANSS)及生活质量量表(WHOQOL - 100)进行精神症状和生活质量的评定。
Double screw pump as a positive displacement pump, the pump suction chamber should be closely separated and discharge chamber inside.
双螺杆泵作为一种容积式泵，泵内吸入室应与排出室严密地隔开。
The effects of the positive and negative ion background on the discharge path are studied.
用实验方法研究了正、负离子背景对放电路径的影响。
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