热水器用管状加热器
Tubular heating element for water heater

2008-12-30

热流道用电加热器
Electric heater element for hot runner mold

2015-07-14

Сплавы и лигатуры на основе ванадия. Методы определения вольфрама
钒基合金和合金元素 钨的测定方法

Specification for industrial duct heaters using metal-sheathed elements
使用金属护套元件的工业管道加热器规范

1998-05-15

Specification for industrial immersion heaters using metal-sheathed elements
使用金属护套元件的工业浸入式加热器规范

1998-05-15

钨制品中杂质元素分析 电感耦合等离子体原子发射光谱法
Elemental analysis of impurities in tungsten products-Inductively coupled plasma atomic emission spectrometric method

2010-11-01

Effect of Temperature Stratification Near Heating Elements on the Measured Energy Factors of Electric Water Heaters
加热元件附近温度分层对电热水器能量因数测量的影响

Residential Water Heater Electrical Usage and Demand Reduction Using Reduced Element Sizes and Time Clock Controls
通过减少元件尺寸和时钟控制减少家用热水器的用电和需求

高纯钨化学分析方法　痕量杂质元素的测定　辉光放电质谱法
Methods for chemical analysis of high purity tungsten—Determination of trace impurity element content—Glow discharge mass spectrometry

2013-10-17

高纯钨化学分析方法　痕量杂质元素的测定　电感耦合等离子体质谱法
Methods for chemical analysis of the high purity tungsten—Determination of trace impurity element content—Inductively coupled plasma mass spectrometry

2013-10-17

钨矿石、钼矿石化学分析方法　第20部分：铌、钽、锆、铪及15个稀土元素量的测定　电感耦合等离子体质谱法
Methods for chemical analysis of tungsten ores and molybdenum ores—Part 20:Determination of niobium,tantalum,zirconium,hafnium and 15 rare earth elements content—Inductively coupled plasma mass spectrometry

2021-03-09