類輻射物質 的英文怎麼說

中文拼音 [lèifúshèwùzhí]
類輻射物質 英文
radiomimetic substances
  • 類 : Ⅰ名1 （許多相似或相同的事物的綜合; 種類） class; category; kind; type 2 （姓氏） a surname Ⅱ動詞...
  • 輻 : 名詞（車輪中車轂和輪圈的連接物） spoke
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 物 : 名詞1 （東西） thing; matter; object 2 （指自己以外的人或與己相對的環境） other people; the outsi...
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  • 輻射 : radiation; exposure; radio; beaming
  • 物質 : matter; substance; material
  1. ( 3 ) uv - b radiation increased the phenylalanina ammonia - lyase ( pal ) activity in leafy thallus of duckweeds, and as a consequence, flavonoids were accumulated. flavonoids synthesis induced by supplementary uv - b is an adaptive response of duckweeks under enhanced uv - b radition

    （ 3 ）紫萍可以通過提高uv - b吸收物質如類黃酮合成酶苯丙氨酸氨裂解酶（ pal ）活性，促進類黃酮的積累來適應uv - b輻射的脅迫。
  2. With the increase of exposure time, the antioxidative ability of spirodela polyhiza dereased, sod and ap activities were induced, and asa content of treated plants were always lower than those of control plants, but the proline ( pro ) contents in treated plants increased. these factors would break the balance of the metabolism of ros and the active oxygen accumulation in leafy thallus of spirodela polyhiza could be the result, the membrane lipid peroxidation was accelerated ( mda content increased ), ultra - microstructure of chloroplast was damaged, photosynthetic capacity dereased, biomass ( dry weight ) reduced

    實驗研究結果如下： （ 1 ） uv - b輻射處理后前2天，紫萍超氧化物歧化酶（ sod ）和抗壞血酸過氧化物酶（ ap ）等抗氧化酶系統有不同程度的升高，隨著uv - b處理時間的延長，紫萍體內抗氧化保護系統能力下降， sod和ap的活性下降，並且非酶類抗氧化物質抗壞血酸（ asa ）含量一直低於對照組，而脯氨酸（ pro ）的含量則一直在升高。
  3. The alpha particles released from polonium - 210 have a very low penetrating power and can be stopped easily by the outer layer of skin or a sheet of paper. it is unlikely that the particles can affect human body through direct irradiation. however the ionization power of alpha particles is very high

    釙210釋放的阿爾法粒子穿透能力很弱，人類的皮膚或一張紙已能隔阻它，粒子經照射影響人體的機會很微，不過由於它的電離能力很強，如果人類吸入或進食含有釙210的物質，其釋放的阿爾法粒子就能直接破壞內臟細胞，即使所吸收的份量不多，也會損害身體健康，急性高劑量阿爾法輻射可以引致輻射中毒。
  4. This article discusses the composition of epicuticular wax of plant leaves, taxonomic utilization of morphological characters of wax, and the important function of cuticular wax for plants, such as protection from irradiation injury, loss of water, attack by microorganisms, parasitic insects

    本文綜述了植物葉表皮蠟質的成分、蠟質形態的分類學意義及蠟質對植物保水、防輻射和防病蟲害等方面的作用。
  5. In general, the energy of the non - ionizing radiation such as light and radiowaves is low and not sufficient to change the chemical properties of a substance

    兩類。一般來說，非電離輻射例如光線及無線電波的能量較低，不足以改變物質的化學性質。
  6. In general, the energy of the non - ionizing radiation ( such as light and radiowaves ) is low and not sufficient to change the chemical properties of a substance

    兩類。一般來說，非電離輻射（例如光線及無線電波）的能量較低，不足以改變物質的化學性質。
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