frequency meters 中文意思是什麼

frequency meters 解釋
頻率計
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  • meters : （測量流體體積的）儀表
  1. ( 2 ) gene flow frequency was reduced as distance from pollen donor increased and a dramatic reduction occurred at about 2 meters. the maximum distance where gene flow was not detected was 50 m for hybrid rice while it was 70 m for ms lines, with an exception that in one of the four ms lines it was detected a frequency of gene flow 2. 8 + 10 - 6 at 150 m for zhong 9a

    在開花期主流風向ne的風速為0 . 2 ? 2 . 2m / sec的條件下， 2個雜交稻品種的最大漂流距離為40m ； 4個不育系的基因漂流基本上到60m為止， 70m處基因漂流頻率均降為0 ，僅中9a在150m處發現了1株basta抗性苗，經pcr檢測驗證為陽性。
  2. Clr : alitalia 793 is cleared to destination zbtj, flight planned route. flight level four thousand five hundred meters. departure runway 36 left, vm two departure, initially maintain one thousand five hundred meters on qnh. departure frequency 119 decimal squawk 0007

    義大利拐九三可以放行至天津濱海，使用跑道三六左，按計劃航路飛行，航路高度四千五。
  3. Application of power - line loaded wave and amplified frequency communication in the automatic transcribing kilowatt - hour meters system

    電力線擴頻載波通信在自動抄表系統中的應用
  4. Direct acting indicating analogue electrical measuring instruments and their accessories part 4 : special requirements for frequency meters

    直接動作指示模擬電氣測量儀器及其附件.第4部分:頻率表的特殊要求
  5. Direct acting indicating analogue electrical measuring instruments and their accessories. part 4 : special requirements for frequency meters

    直接動作指示模擬電氣測量儀器及其附件.第4部分:頻率表的特殊要求
  6. Direct acting indicating analogue electrical measuring instruments and their accessories - specification for special requirements for frequency meters

    直接指示模擬電工測量儀表及其附件.頻率表的特殊要求規范
  7. Direct acting indicating analogue electrical measuring instruments and their accessories ; part 4 : special requirements for frequency meters iec 60051 - 4 : 1984, edition 4 ; german version en 60051 - 4 : 1989

    直接顯示的模擬電器測量儀及附件.第4部分:頻率表的特
  8. The group is intending to build 43, 600 square meters workshop and purchase intermediate frequency electric stove, driving, froth shaper, spongy machine, centrifugal casting machine, ditch granulated substance machine, liquid machine, physics and chemistry examination machine, etc

    新建廠房43600平方米，購置中頻電爐、行車、泡沫成型機、發泡機、離心澆注機、溝砂機、料漿機、理化檢測等設備120臺（套） 。
  9. In recent years, the span of modern cable - stayed bridge has become longer ( the longest span of cable - stayed bridge has been over 1000 meters in the world, and it will develop longer in the future ), generally, with the span gets more longer, the frequency of the bridge is more lower

    近年來，隨著現代斜拉橋跨度的不斷增大（目前最大跨度已經超過1000米，並向更大跨度發展） ，橋梁結構的頻率越來越低，易受環境激勵發生各種振動，從而誘發斜拉索的振動。
  10. The error of distortion which harmonic distortion meter detects can be least controlled 1. the lowest frequency which harmonic distortion meter can detect is 0. 0001hz. but, generally, this kind of meter is so costly and difficult to operate that the major portion of the distortion meters applies the method of suppressed fundamental harmonic

    採用諧波分析法的失真度儀測得的失真度的最小誤差可控制在千分之一以下，頻率最低可達到萬分之一赫茲，但普遍存在儀器價格較貴，操作繁瑣的缺點，現在用的失真度測試儀大多是用基波抑製法。
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