Objective to develop an improved adjustable bilateral aiming device to substitute the old single-side one to guide lateral arch screw insertion of axis.
目的针对单侧可调式枢椎椎弓螺钉定位器的不足，研制改进出一种双侧可调式侧方椎弓定位器。
The various devices are arranged in the carrier of the purification device through the insertion and connection mode, thereby facilitating the detachment for carrying out the maintenance.
上述各装置通过插接的方式装在净化装置载体中，便于拆卸下来进行维护。
There was no statistically significant difference between the LMA and ETT with the exception of a clinically insignificant difference in time to complete insertion of the device favouring the ETT.
喉头罩和气管插管之间没有统计学上显著的差异，除了插管完成的时间稍快一些，但并无明显差异。
There was no statistically significant difference between the LMA and ETT with the exception of a clinically insignificant difference in time to complete insertion of the device favouring the ETT.
喉头罩和气管插管之间没有统计学上显著的差异，除了插管完成的时间稍快一些，但并无明显差异。
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