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英漢雙解生物學(xué) 共有 3411 個(gè)詞條內(nèi)容

abaxial

    In lateral organs,such as a leaf,the lower surface i.e. the side,facing awayfrom the main axis. Abaxial is synonymouswith dorsal when the latter term is being ap-plied to lateral organs. Compare adaxial.指?jìng)?cè)生器官(如葉片)的下表面與植物的主軸相背。當(dāng)用dorsal(背面的)來(lái)描述側(cè)...[繼續(xù)閱讀]

英漢雙解生物學(xué)

abdomen

    1 . The section of the body cavityof vertebrates that contains the stomach,in-testines,and other viscera.2. The posterior section of the body inarthropods. Primitively it consists of a seriesof similar segments.1.脊椎動(dòng)物的體腔部分,包括胃、腸和其他內(nèi)臟。2.節(jié)肢動(dòng)物體節(jié)的后段...[繼續(xù)閱讀]

英漢雙解生物學(xué)

abducens nerve(cranial nerve Ⅵ)

    One ofthe pair of nerves that arises from the anteriorend of the medulla oblongata in the vertebratebrain to supply the posterior rectus muscle ofeach eyeball. It contains chiefly motor nervefibers. See cranial nerves.脊椎動(dòng)物大腦內(nèi)起始于延髓前端的支配眼球后直肌運(yùn)動(dòng)的一對(duì)神經(jīng)...[繼續(xù)閱讀]

英漢雙解生物學(xué)

abiogenesis

    The development of living fromnonliving matter,as in the origin of life.生命物質(zhì)由非生命物質(zhì)產(chǎn)生的學(xué)說(shuō),例如生命的起源。...[繼續(xù)閱讀]

英漢雙解生物學(xué)

abiotic environment

    The nonliving factorsof the environment that influence ecologicalsystems. Abiotic factors include climate,chemical pollution,geographical features,etc.環(huán)境中影響生態(tài)系統(tǒng)的非生物因素,這些因素包括氣候、化學(xué)污染、地理特性等。...[繼續(xù)閱讀]

英漢雙解生物學(xué)

abomasum

    The fourth and last region ofthe specialized stomach of ruminants (e.g.the cow). It is lined with normal mucosacontaining gastric pits,producing hydrochlo-ric acid,pepsin,and rennin,and is the truedigestive stomach.反芻動(dòng)物(如牛)特有的最后一個(gè)胃,即第四胃。它有正常的凹形的黏膜...[繼續(xù)閱讀]

英漢雙解生物學(xué)

abscisic acid (ABA)

    A plant hormone,firstisolated from sycamore,that functions chieflyas a growth inhibitor. It promotes abscission(shedding) of flowers and fruits,induces dor-mancy of buds and seeds,and causes closureof leaf pores (stomata). Formerly it was knownas abscisin...[繼續(xù)閱讀]

英漢雙解生物學(xué)

abscission

    The organized loss of part of aplant,usually a leaf,fruit,or unfertilizedflower. An abscission zone occurs at the baseof the organ. Here a separation layer (ab-scission layer) is formed by breakdown orseparation of cells and final severance occurswhen the...[繼續(xù)閱讀]

英漢雙解生物學(xué)

absorption

    The uptake of liquid by cells.Most digested food is absorbed in the smallintestine,the inner surface of which is linedwith finger-like projections (villi): the liquidproducts of digestion are absorbed throughthe villi into the blood and lymphatic sys-tems...[繼續(xù)閱讀]

英漢雙解生物學(xué)

absorption spectrum

    A plot of the ab-sorbance by a substance of radiation at differ-ent wavelengths,usually of ultraviolet,visi-ble,or infrared radiation. It can give infor-mation about the identity or quantity of a sub-stance. Chlorophylls,for example,have ab-sorption peaks...[繼續(xù)閱讀]

英漢雙解生物學(xué)