upper side frequency 中文意思是什麼
upper side frequency
解釋
上邊頻-
The brief name ring, measures a device right high, inside, low and each segment scope for ability for even emersion of signal, pointing lowestly validity returning putting the frequency with tallestly validity returning put of the frequencying. request towards device rang contain both side, on is a scoping as far as possible breadth, can be namely frequency bottom that replay the is as far as possible low, and the upper limit is as far as possible high ; two is a frequency scope the inside is at all point to respond to as far as possible flat, avoided to appeared the big motion
簡稱頻響，衡量一件器材對高中低各頻段信號均勻再現的能力，指最低有效回放頻率與最高有效回放頻率之間的范圍。對器材頻響的要求有兩方面，一是范圍盡量寬，即能夠重播的頻率下限盡量低，上限盡量高二是頻率范圍內各點的響應盡量平坦，避免出現過大的波動。 -
Cotyledon without petiole showed a significantly lower frequency of shoot regeneration ( 16. 7 % ) compared with that of entire cotyledon ( 33. 8 % ), but the average number of shoots per explant ( 4. 2 ) was more than that of entire cotyledon ( 2. 5 ). no shoot was obtained when the petiole alone was cultured. the frequency of shoot regeneration ( 8. 3 %, 12. 5 % ) and average number of shoots per explant ( 2. 3, 1. 7 ) from the upper section of lamina or one side of lamina was lower than those of entire cotyledon
另一方面，以「種都一號」兒菜的不同子葉部位作為外植體所進行的研究結果表明，不帶子葉柄的完整葉片其芽再生率（ 16 . 70 ）顯著低於帶子葉柄的完整子葉（ 33 . 8 ） ，但平均再生芽數，前者（ 4 . 2 ）卻高於後者（ 2 . 5 ） ；子葉柄不能進行芽的分化；不帶子葉柄的子葉尖端和子葉一側，其芽再生率（分別為12 . 5 、 8 . 30 ）及再生芽數（分別為2 . 3 、 1 . 7 ）也明顯低於帶子葉柄的完整子葉。
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