check-valve carrier 出油阀紧座
True Union Valves - remove valve; CAREFULLY tighten seal carrier (located on inlet end of body).
单进入阀门- 小心紧固单活接头螺母。
A new valve is designed to inject the sample and the bubbles into the carrier stream quantitatively.
设计的切换阀可使试样及空气定量注入，并能准确间隔试样带。
The sensitivities of 12 elements has been invelstigated with 8 kinds of organic solvents used as carrier stream for FI-AAS, and by using a hydrodynamic conduit in place of injection valve.
使用流体动力定量管代替进样阀，用8种有机试剂作载流由流动注射原子吸收法测定12个元素。
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