焊接熔观察孔针(3)设置在管件本体上，方便检测焊接进程，控制焊接质量。
The molten observation hole needle (3) is arranged on the pipe fitting body so that a welding progress can be conveniently detected, and the welding quality can be controlled.
并结合以前通过五孔针测量取得的流场进行了分析， 得出了该叶栅中紊流参数的变化规律。
The test Reynolds number based on the incoming flow and the blade chord was 100000. The measured results were analyzed in conjunction with the flow fields mapped by using five hole probe.
如果有被污染的血液残留在针的内孔或注射器里，然后有人使用它进行毒品注射的话，残留的血液可能会进入血液循环系统中。
If HIV infected blood remains within the bore (inside) of the needle or in the syringe and someone else then uses it to inject themselves, that blood can be flushed into the bloodstream.
应用推荐