被老头在公车摸到高潮_日本理论片丫丫4480理论片_chinaxxxxhdtubevideo_欧美午夜性视频

(1) Detection and calculation items: K⁺，Na⁺，Cl^- ，Ca²⁺，pH，Li⁺，nCa，TCa，TCO₂, AG and total carbon dioxide (TCO2)

(2) Samples can be directly measured, without separate packaging
(3) Maintenance-free electrode for long-term storage
(4) Sampling needle anti-collision protection design
(5) Intelligent sampling needle level detection
(6) Slope and mean double parameter correction to ensure linearity and accuracy
(7) Closed reagent system is adopted, which reduces the risk of biological contamination and meets environmental requirements
(8) Optional autosampler provides 1 emergency test position, 3 quality control test positions and 39 sample test positions