Measure of the effective optical path of QN-1total flow extinction type smoke meter developed recently is described in detail.
对近期所研制的QN - 1型全流消光式烟度计有效光路的测定进行了较为详细的叙述。
2
Results QN capsules could significantly prolong the survival time of hypoxic mice and the mice with acute cerebral ischemia.
结果QN胶囊可延长缺氧小鼠和急性脑缺血小鼠的存活时间；
3
In this paper, a quasi-Newtonian (QN) method for consistent nonlinear equations (CNLE), which number of equations may be unidentified with the number of variables, is given firstly.