您要查找的是不是：
- This pushing-in of cells marks the start of gastrulation. 細胞的這種向里推進(jìn)標志著(zhù)原腸胚形成的開(kāi)始。
- gastrulation biphased 原腸胚二相說(shuō)
- After gastrulation, the embryo consists of a three-layered, flat, oval germinal disk. 原胚腸形成后，胚胎由一個(gè)三層的扁橢圓形胚盤(pán)形成。
- The outer layer of a blastula that gives rise to the ectoderm after gastrulation. 外胚層囊胚的外層，在原腸胚形成之后生后外胚層組織
- The FBC(fluorous biphase catalysis) is a new nonaqueous immobilization and phase-separation tech-nique. 氟兩相催化體系（FBC）是一種新型均相催化劑固定化（多相化）和相分離技術(shù)。
- It is equired for the formation of the primitive streak during mouse gastrulation. 它在小鼠原腸期的原條形成過(guò)程中起重要作用。
- Nitration of toluene with fluorous biphase system was studied by using the perfluorous nonene as solvent. 利用全氟壬烯-甲苯兩相體系研究甲苯的硝化反應。
- FGF control cell migration and establishment of the anterior-posterior body axis of the neural plate during gastrulation. 在胚胎發(fā)育初期,FGF可誘導原腸胚形成期間的細胞遷移和神經(jīng)板前后體軸的建立;
- The rearrangement of the blastula into a three-dimensional organism with inner, middle, and outer layers occurs during gastrulation. 在原腸胚形成過(guò)程中，囊胚重新排列，形成包括內層，中層，外層的三圍組織。
- The results from X-ray diffraction showed that the biphase sys-tem still remains in the micronized celluloses,so their original crystalline type. X-射線(xiàn)衍射分析顯示：微粉化產(chǎn)物仍保持其纖維素材料原來(lái)的晶型和兩相（晶區與非晶區）共存的微細結構。
- Twenty-one species of red tide organisms and four types of red tides (uniphase, biphase, triphase, tetraphase) were found. 共發(fā)現赤潮生物21種,赤潮類(lèi)型4種(單相型、雙相型、三相型和四相型)。
- As an example, computer simulations and experimental results of 127-bit biphase coded signals processed by the SSF are also given. 并以127位二相編碼信號為例,對SSF處理的性能進(jìn)行仿真分析和實(shí)驗測試。
- For short biphase codes,the main lobe to sidelobe ratio of pulse compression is low,so sidelobe suppression is necessary. 二相碼信號是一類(lèi)常見(jiàn)的脈沖編碼信號,但碼較短時(shí),匹配濾波的主副比不高,需要采用旁瓣抑制技術(shù)。
- These show that biphase coded signal SSF designed by this method can be applied in modern radar systems, and the satisfactory performance are achieved. 這表明采用這種方法所設計的二相碼信號SSF可以應用于現代雷達系統,并得到滿(mǎn)意的性能指標。
- It is expected that a great progress will be achieved in the research of the novel catalytic systems and biphase systems. 兩相催化體系的開(kāi)發(fā)正在成為研究的主流引人矚目,預期新催化劑體系和兩相體系在高碳烯烴氫甲?；瘧蒙蠈⒂型黄?。
- Some recent research developments of catalytic oxidation reactions in water/organic biphase system are reviewed with 21 references. 論述了水/有機兩相體系中催化氧化反應的一些最新進(jìn)展。
- The biphase systems have many advantages and have become a hotspot of the research on the hydroformylation of higher olefins. 本文從均相催化體系和兩相催化體系兩個(gè)方面介紹了國內外近年來(lái)在研究與開(kāi)發(fā)上取得的進(jìn)展。
- The authors discussion the staging parameters of embryonic development, the forming of gastrulation, "ammon tail fold" and "posterior amnion tube" and the forward movement of the embryo itself. 并就烏龜發(fā)育分期的標準，原腸胚的形成，羊膜尾褶和后羊膜管，早期胚胎的自身運動(dòng)等問(wèn)題進(jìn)行了討論。
- The FBS (fluorous biphase system) makes homogeneous catalysis and heterogeneous separation possible and easy to separate the catalysts dissolved in PFC (perfluorocarbons). 氟兩相體系實(shí)現了均相催化多相化,可以方便地分離溶解在PFC中的催化劑。
- The hydrolysis of olive oil catalyzed by surfactant-coated lipase in a biphase system was studied in a hollow fiber membrane reactor made of hydrophilic polyacrylonitrile. 在聚丙烯腈中空纖維膜反應器油-水兩相體系中,使用表面活性劑包衣酶催化水解橄欖油。
