首次雷擊 的英文怎麼說
中文拼音 [shǒucìléijī]
首次雷擊
英文
lightning first stroke- 首 : Ⅰ名詞1 (頭) head 2 (首領) leader; head; chief 3 (表示方位) aspect 4 (姓氏) a surname Ⅱ動...
- 次 : Ⅰ名詞1 (次序; 等第) order; sequence 2 [書面語] (出外遠行時停留的處所) stopping place on a jou...
- 雷 : 1. (雲層放電時發出的響聲) thunder 2. (軍事上用的爆炸武器) mine 3. (姓氏) a surname
- 首次 : for the first time; first
- 雷擊 : be struck by lightning; thunderstrike; [地球物理] lightning stroke
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The shorter the interval between the two pulses of the current wave, the fewer strikes the varistors can endure. at the same time, the dc ljima changes fast - slowly - fast alone with the experiment continuing. microstructual disorder, such as variations in the height of the electrostatic potential at grain boundaries and electrode protrusions into the zinc oxide varistors, causes substantial temperature rise in a microscopic region around the defect and is the source for failure
雷電的多重閃擊對雷電過電壓保護器件的影響更加嚴重,本文首次採用不同間歇時間雙脈沖電流沖擊對氧化鋅電阻進行了多次試驗,試驗表明:氧化鋅電阻在雙脈沖電流沖擊下更容易出現老化破壞現象,間歇時間越短,電阻能耐受的沖擊次數越少;此外,直流u _ ( 1ma )值隨沖擊次數的增加具有快一慢一快的下降過程。
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