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In vitro morphogenesis and differentiation pathways of three leaf callus and rep roduction block mass of aerial root in Anthurium andraeanum 'Arizona'were studied.

对红掌叶片诱导产生的3种愈伤组织和气生根再生团块的形成、不定芽的分化发育过程进行了显微观察。

Anthurium young leaf was used as material to find out the better ingredient of culture medium and the appropriate temperature for its callus inducing.

以安祖花嫩叶为试材，研究安祖花品种、培养基不同组分和培养温度对叶片愈伤组织诱导率的影响。

He often describes the United States as his leading adversary and has made the right to grow the coca leaf a top symbol of sovereignty and anti-imperialism.

他常说美国是他的头号敌人，将种植古柯叶的权利当作主权与反帝国主义的最高象徵。

On the basis of the shapes of leaf epidermal cells, patterns of anticlinal walls, types of stomatal apparatus, stomatal index and stomatal size, all examined Lepisorus can be divided into four groups.

瓦韦属不同药用植物在叶表皮细胞的大小、形态、垂周壁式样以及气孔器类型、气孔器大小、气孔指数等特征上存在差异，据此可以划分为4种类型。

Antiscorbutic acid and the loquat leaf flavanone has the coordination oxidation resistance effect.

枇杷叶黄酮可以作为油脂的抗氧化剂开发利用。

The results showed that antisepsis preservation of clove leaf oil on the postharvest peach was very obvious.

说明丁香叶油对采后桃果实具有明显的防腐保鲜效果。

Nowadays, it is very popular to paste antithetical couplet on the door leaf in spring festival and another celebration days in china.

在今天的中国，每逢春节或其他喜庆的日子，仍然十分流行在门扇上贴"对子"的风俗。

The upper leaf is then freed from the underlying internal oblique muscle and aponeurosis for a distance of 3cm above the inguinal floor.

再将腹外斜肌腱膜上叶与其下方的腹内斜肌/腱膜分离，并游离至腹股沟管壁上方3cm。

Among the most destructive enemies of the apple orchard are the codling moth, various species of mites, the woolly aphid, the apple maggot, the red-banded leaf roller, and scale insects.

庄稼损伤在苹果树的最破坏性的敌人之中是小蜘蛛的苹果蠹蛾、各种各样的种类，绵蚜、苹果蛆、红色被结合的卷叶蛾和介壳虫。

Research results show that 25% Amistar SC could be used safely on Fuji, New Red Star, Beidou, Australian Green Apple, but it is harmful to Gala. Amistar has a great control effect on apple powdery mildew, apple scab and apple Alternaria leaf spot. The control effect works from 80% to 90% when it is used with 1:2000 to 1:3000 dilutions in field.

结果表明，25% Amistar SC除对嘎啦品种有药害外，对红富士、新红星、北斗、澳州青苹等6个骨干品种均无任何不良影响，使用安全；同时，25%阿米西达SC对苹果白粉病、黑星病及斑点落叶病等3种主要病害均具有显著防治效果，使用浓度1：2000~1：2500，防治效果为80%~90%；在广谱性和防效上显著优於目前生产上推广的常规性的苯并咪唑类、三唑类及代森类的杀菌剂品种。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。