研究人员打算研究：微生物是否可以在星际旅行中存活，并据以评估胚种说存在的可能性。
Researchers plan to evaluate the likelihood of panspermia by studying whether microorganisms can survive an interplanetary journey.
“胚种假说”假设：活细胞或其前驱物可能于数十亿年前发源自其它行星或月球上，并且搭陨石的便车来到地球。
The panspermia hypothesis posits that living cells or their precursors could have emerged on another planet or moon billions of years ago and hitched a ride to Earth on a meteorite.
然而，胚种说真要发生，微生物除了从第一颗行星喷发、进入第二颗行星的大气时必须幸存之外，还要能在整个行星际旅程中保住小命。
For panspermia to occur, however, microorganisms need to survive not only ejection from the first planet and atmospheric entry to the second but the interplanetary voyage itself.
我们由此就有了一种“习惯”的胚种或者雏形，这是在“地美士第”或判决的概念之后的一种概念。
Here we have the germ or rudiment of a Custom, a conception posterior to that of Themistes or judgments.
自从上世纪60年代起，维克拉马辛教授和他的已故同事霍伊尔便倡导“有生源说（或称：胚种论）”的理论。
The professor and his late colleague Sir Fred Hoyle championed the so-calledd " panspermia" theory from the 1960s.
番茄种胚水势与含水量的关系呈幂指数的正相关。
The water potential of embryo was positively correlated with its moisture content.
全量培养基比半量培养基更适合愈伤组织继代；MS基本培养基有利于种胚植株再生。
Full quality of basic media were more suitable to callus subculture than half quality of that. But MS basic medium was advantageous to plant regeneration of mature embryo.
结果表明，引起砂梨种子休眠的主要有种皮障碍、种胚休眠和种胚后熟；
The results showed: the major causes were obstacle of seed vessel, seed embryo dormancy and post-maturation;
与其他通过伤疤进行愈合的典型哺乳动物不同，这些老鼠则通过形成一种胚基以帮助细胞快速生长。
Unlike typical mammals, which heal wounds by forming a scar, these mice begin by forming a blastema, a structure associated with rapid cell growth.
利用对油籽细胞壁的机械破碎和酶降解的方法，建立起一种玉米胚油提取新工艺。
A new procedure for obtaining corn germ oil was developed using mechanical and enzymatic rupturing of cell walls.
体胚发生是植物细胞全能性的一种表达方式，是快速繁殖的新途径。
Somatic embryogenesis is a way of plant cell totipotency, and a new pathway of rapid propagation.
种子休眠主要有两种休眠类型即由种皮引起的休眠和由胚引起的休眠。
There are basically two categories of dormancy, the one of which is caused by seed coat, the other of which is caused by embryo.
此外，研究人员还在另两种失效磷酸化蛋白和另外两类细胞——体外猴细胞和活体果蝇晶胚中，发现了类似的非对称有丝分裂。
Asymmetric mitoses were also observed in two other phosphorylated proteins primed for destruction, and in two other cell types: monkey cells in vitro, and Drosophila embryos in vivo.
两种蟹肝胰腺均由肝小管的单层柱状上皮构成，在光镜下可以区分出分泌细胞、吸收细胞、胚性细胞。
The hepatopancreas of the two crabs were built with simple columnar epithelia. Secreting, absorbing and embryonic cells could be distinguished.
目的探讨人胚神经干细胞体外培养的条件和分化情况，以摸索出一种切实可行的能获得较纯且多潜能人胚神经干细胞的方法。
Objective to study the cultivation condition in vitro and differentiation of neural stem cells from the embryonic human in order to find a way to get purified multipotential neural stem cells.
目的：探讨胞质内直接注核法和电融合法对大鼠-小鼠种间体细胞核移植重组胚发育的影响。
Objective:To study the effect of reconstructed embryos by cytoplasm injection and electrical fusion in rat-mouse inter-species somatic cell nuclear transplantation.
为了探讨人胚神经干细胞体外培养条件和分化情况，摸索出一种切实可行的获得较纯、多潜能人胚神经干细胞的方法。
This is a study on the cultivation condition in vitro and differentiation of neural stem cells from human embryonic brain in order to find a way to get purified multipotential neural stem cells.
种子休眠主要有两种休眠类型即由种皮引起的休眠和由胚引起的休眠。
There are basically two categories of dormancy , the one of which is caused by seed coat , the other of which is caused by embryo.
本文报道为了进行一种微量血清中和试验，使禽传染性支气管炎病毒马萨诸塞41株，适应鸡胚肾细胞培养物的过程。
This paper reports the course followed leading to the successful adaptation of IBV Massachusetts 41 strain to CEK cells as a prerequisite for the development of a micro serum neutralization test.
本发明涉及一种麦胚营养粉及其制备方法。
The present invention relates to a wheat germ nutrient flour and its preparation method.
本发明公开了一种用于培养大蒜有性胚的固体培养基，属于农业生物技 术领域。
The invention discloses a solid culture medium for culturing garlic epigamous embryo, belonging to the field of agricultural biotechnology.
实验结果认为，水稻成熟胚是一种“竞争性”外植体。
The experimental results indicated that the mature rice seed is a competitive explant.
用3种不同浓度的消胚散结汤给早期妊娠大鼠灌胃，观察其抗早孕作用及对流产失败后幸存胚胎发育的影响。
Xiaopei Sanjie Decoctions (XPSJD) with 3 concentration were fed to pregnant rats to observe their action on early pregnancy and effects on the embryo development after abortion failure.
石楠的组织培养以石楠的新梢茎段、种胚和叶片为材料，主要探讨组织培养过程中各种最佳培养基、组织培养条件及组织培养过程中存在问题如外植体污染、褐化等问题的解决方法。
Using the fresh shoots, seed and leaves as the materials, the optimal medium and culture condition are studied, finding the methods to solve the matter of explants pollution and browning.
巨胚稻是特种稻的一种，其胚重是普通稻米胚重量的2 - 3倍，是一种高营养功能性稻米。
The giant embryo rice (ge-rice) is a special rice with high nutritive and function, the embryo weight of giant embryo rice is increased by 2-3 times than that of common rice.
单位圆上的拟交比同胚和拟对称函数，都是拟共形映照边界值的一种几何表征。
Quasihomographies and quasi-symmetric function on the unit circle are geometric characterizations of boundary value of quasi-conformal mapping.
单位圆上的拟交比同胚和拟对称函数，都是拟共形映照边界值的一种几何表征。
Quasihomographies and quasi-symmetric function on the unit circle are geometric characterizations of boundary value of quasi-conformal mapping.
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