head lift造句

• Mobile beds with head lifting
  提升移动折叠床
• But suddenly he knew he was having the paper read to him by an actress ！ “ an actress ！ ” the old head lifted ； two points of light quivered in the old eyes
  但是他突然知道了给他读报纸的是个女演员！ “一个女演员！ ”衰老的头抬了起来，昏花的眼中闪动着两个光点。
• This machine is used for straight - line bevel cutting and bevel grinding and polishing for flat glass , in certain condition , it can be also used in bevel cuttig , bevel grinding and polishing for soft stone panel . the contrilling system adopts plc , it can accomplish automatic grinding cutting after entering processing parameter , convery speed adopts speed adjustment of fre quency conversion , direct drive of wheel head motor , all motions for joining in parameter adjustment completely adopt straight - rolling guide - track with front beam and wheel head lifting lntegrally . the transmission of input and output adopts synchronization tooth belt and photo - electricity switch positioning , and position limitation of two pass is much more reliable
  Sxm371pa型玻璃直线斜边磨边机是用于玻璃直线斜边斜切，斜磨及光抛的专用设备，在一定条件下也可以用于软石板材的斜切斜磨及抛光。控制系统采用plc控制。输入加工参数后可自动完成磨削传送速度采用变频调速，磨头电机直接传动，所有加工参数调整运动副全部采用直线滚动导轨，前梁与磨头整体升降，输入输出传送采用同步形带，光电开光定位，双行程限位更安全可靠。