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selenium    音标拼音: [səl'iniəm]
n. 非金属元素,符号Se,原子序34

非金属元素,符号Se,原子序34

selenium
硒

selenium
n 1: a toxic nonmetallic element related to sulfur and
tellurium; occurs in several allotropic forms; a stable
grey metallike allotrope conducts electricity better in the
light than in the dark and is used in photocells; occurs in
sulfide ores (as pyrite) [synonym: {selenium}, {Se}, {atomic
number 34}]

Selenium \Se*le"ni*um\, n. [NL., from Gr. selh`nh the moon. So
called because of its chemical analogy to tellurium (from L.
tellus the earth), being, as it were, a companion to it.]
(Chem.)
A nonmetallic element of the sulphur group of atomic number
34, analogous to sulphur in its compounds. It is found in
small quantities with sulphur and some sulphur ores, and
obtained in the free state as a dark reddish powder or
crystalline mass, or as a dark metallic-looking substance. It
exhibits under the action of light a remarkable variation in
electric conductivity, and is used in certain electric
apparatus. Symbol Se. Atomic weight 78.96.
[1913 Webster]


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  • Selenium
    If you want to create quick bug reproduction scripts, create scripts to aid in automation-aided exploratory testing, then you want to use Selenium IDE; a Chrome, Firefox and Edge add-on that will do simple record-and-playback of interactions with the browser
  • Selenium: Benefits, Uses, Side Effects, Dosage, and More - WebMD
    Selenium is a trace mineral essential for thyroid and immune health Learn the benefits, food sources, deficiency, recommended intake, and risks of too much selenium
  • What is Selenium? | Selenium. io
    Selenium is an open-source tool suite for automating web application testing It is the most widely used browser automation framework and is used by millions of developers worldwide
  • Selenium - Health Professional Fact Sheet - Office of Dietary . . .
    Selenium overview for health professionals Research health effects, dosing, sources, deficiency symptoms, side effects, and interactions here
  • selenium · PyPI
    Selenium WebDriver is often used as a basis for testing web applications Here is a simple example using Python’s standard unittest library: For local Selenium scripts, the Java server is not needed To use Selenium remotely, you need to also run a Selenium Grid
  • Selenium Tutorial: Step-by-Step Guide to Automation Testing . . .
    Selenium is a widely-used open-source framework for automating web application testing It allows developers and testers to interact with web browsers programmatically, simulating user actions like clicking buttons, filling forms, or navigating between pages





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