PRC drift car by traction locomotive traction into columnoperation.
PRC平巷人车由牵引机车牵引成列运行。
2
The former is a fatal limitation, which is the necessary condition for rectification columnoperation, and cannot be exceeded in actual design.
而后者属于不可接受限制，是塔板保证传质效果的充分条件，实际设计可结合具体情况适当调整。
3
Objective To evaluate the effect of acute hypervolemic hemodilution (AHH) combined with controlled hypotension (CH) on the blood loss in the spinal columnoperation.