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The total particulate matter (TPM) on Cambridge pad was extracted with CO-2 free water and the pH value of aqueous extraction was measured by pH meter. 捕集在剑桥滤片上的卷烟主流烟气粒相物用去CO2 的蒸馏水提取 ,用精密 pH值计测量水提取液的 pH值。
This paper introduces a new method to raise the measuring precision of the pH meter which also is applicable to the DCV source with high resistance like the pH meter in theory. 从降低酸度计探头部分的系统误差、提高其测量精度的研究出发,提出了一种解决酸度计测量精度新的设计方法。而且这一新方法从理论上讲也适用于解决pH计之类的高内阻直流电压信号源的测量精度这一难题。
The device of rotating comprises a container, a lip of plural holes and a gas gate, a stirring bar and a magnetic stirrer and a pH probe connected to a pH meter. 每个搅拌溶出装置，包含一个样品搅拌容器、一个含洩气阀与多孔装置之密封盖、一固定支架、两个螺帽、一个培轮装置、一根搅拌棒、一颗搅拌磁石、一个磁搅拌器、一根酸碱值探针、以及一个酸碱值测定仪。
Item Portable battery pack for Digital Camera 电池名称:便携式数码相机外置电池
This article presents the Characteristics and design thoughts of the Pre-amplifier of PH Meter,the application of the relevant techniques of EMC and the measures that used in the design. 介绍了PH计前置放大器的特点及其设计思想,阐述了电磁兼容相关技术的应用以及设计中所采取的措施。
Design of portable battery internal resistance tester 便携式蓄电池内阻测试仪的研制
Development of an intelligent portable battery charger 一种便携式智能充电器的设计
Determination of antibiotic in milk by PH meter PH计法检测牛奶中的抗生素
Research on On-line Constant Temperature pH Meter 在线恒温pH计的研究
acid-base titration with pH meter pH计测定的酸碱滴定法
direct reading glass electrode pH meter 直读式玻璃电极pH计
pH meter for simplified water-works 简易水道用pH计
Examples are thermocouples, flow meters, load cells, pH meters，pressure gauges, control panels, and operator keyboards. 例如，热电偶，流量计，压力传感器，酸度计，压力表，控制面板，操作键盘。
Study on Automatic Portable Battery Power Inverter Supply on Agricultural Vehicle 农用车载蓄电池自动充电电源的研究
Bob tuned in his portable radio to a record show. 鲍伯收听手提收音机的唱片广播。
The calculator needs a new battery. 计算器需换新电池。
Completely portable and very light weight. 便携式的，而且重量很轻。
The mechanic checked out the car battery. 汽车修理工检验了汽车里的电池。
Does your car battery charged easily? 你那辆汽车的蓄电池容易充电吗？
They are electrifying the battery. 他们正给电池充电。