視醛 的英文怎麼說
中文拼音 [shìquán]
視醛
英文
retinaldehyde-
When the pigment absorbs light ( or, more precisely, absorbs discrete packets of energy called photons ), the added energy causes the retinal to change shape, triggering a cascade of molecular events leading to excitation of the cone cell
視色素一旦吸收了光線（更精確的說法是吸收了稱為光子的特定能量單元） ，新增加的能量就會改變視黃醛的形狀，因而引發一連串的分子事件，造成錐細胞的興奮。A visual pigment may absorb two wavelengths equally, but even though their photons contain different energies, the cone cannot tell them apart, because they both cause the retinal to change shape and thus trigger the same molecular cascade leading to excitation
同一個視色素可能對兩種不同波長的吸收能力一樣好，但即使這兩種波長的光子能量不同，錐細胞也無法將之區分開來，因為這兩種光都會改變視黃醛的形狀，因而引發同樣的分子事件，造成錐細胞的興奮。But the molecular mechanism of formaldehyde on evoked airway irritation is not clear. however, there are few of the hypotheses about it, for example, nielsen hypothesis, which explain how formal dehyde and other air contamination beget neurogenic inflammation. our task at present is testifying if the hypothesis is right or not
因此氣道刺激作用的分子機理還有待闡明，不過有一些假設倒是引起了我們的注意，如nielsen假設就是一個比較重要的、正日益受到人們重視的理論假設，它從分子機理上解釋了甲醛等空氣污染物是如何通過辣椒素受體的介導引起氣道刺激作用和氣道神經源性炎癥的。
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