用所给的词和词组写出符合逻辑的句子。 we will/supply/be unable to/the goods/we receive/payment/unless/in advance
制动状态时,脚踏式制动机链卷入量为()。 ["0.5~1圈","0.5~2圈","1~2圈","1~3圈"]
装卸车鹤位与缓冲罐之间的距离不应小于() ["2m","3m","4m","5m"]
精度为1/50mm的游标卡尺,其副尺每格为()。 ["49/50mm","19/20mm","9/10mm","0.02mm"]
车辆在白天驶出公路隧道时,司机的视觉会出现白洞现象。
()是把一张原稿分成几块印版,用不同颜色的色料,分别套印在同一张纸面上。