nip rolls meaning in English

光泽辊
压料辊
咬关辊
咬送辊, 压送辊

Pneumatically operated film nip rolls with controls on sub cabinet
气动薄膜夹紧辊。
Electric cabinet as well as control cabinet in the sub cabinet , containing all controls such as two temperature controllers , on / off push buttons for blower , film drives , lamp and pneumatic opening / closing of nip rolls . the film attachment is equipped with it ’ s own electric supply so that the die and flange can be heated up even when removed from the extruder
电气柜带有所有控制模块包括两组温度控制器，吹膜机开/关按钮，光源和夹紧轮的气动张开/闭合控制。薄膜附加设备带有自己的供电模块，因此即使同挤出机分开也可以将模头和法兰单独加热。