stomas
英
美 [ˈstoʊməz]
n. 气孔(植物叶或茎表皮的小孔); (某些动物的)气门，呼吸孔; (尤指结肠或气管上的)造口
stoma的复数
双语例句
- The epidermis of leaves was also studied by optical microscope, the frame type of stomas and arrangement of epidermic cells was found helpful in taxonomy of the genus.
此外对叶表皮还采用光学显微镜进行了研究，发现叶表皮细胞形态、排列方式对分类学研究也有辅助作用。 - The ornamental abilities that absorbing formaldehyde is direct ratio with the area of the leafs, and is import with the the number of the stomas.
植物吸收甲醛与叶面积成正比，与气孔数量有关系。 - High efficiency and high cleanliness of ultrasonic cleaning machines derive from its penetrability and shock wave of air when the sound is communicated in the medium. So it is easy to clean those parts with complex shapes, inner cavity and stomas.
超声波清洗机的高效率和高清洁度，得益于其声波在介质中传播时产生的穿透性和空化冲击波，所以很容易将带有复杂外形，内腔和细孔的零部件清洗干净。 - In gas exchange. The stomas closes, and all of the gas exchange rate, photosynthetic rate and transpiration rate decrease. The ratio of photosynthesis and water utility is increased under drought stress, since transpiration was inhibited more strongly than photosynthesis.
在气体交换方面，气孔关闭，气体交换速率减缓，光合速率和蒸腾速率都下降，但是，与光合速率相比，由于蒸腾速率受到更强烈的抑制，水分利用率提高。 - Zizyphus jujuba Mill has small leaves, thick cuticle, dense stomas in lower epidermis, fully developed palisade tissue and degenerate spongy tissue. All.
酸枣叶片小，角质层厚，下表皮气孔密度大，栅栏组织发达，海绵组织退化。 - Results: All anastomotic stomas of132 cases were well healed.
结果：132例手术无1例吻合口瘘发生。 - The resistance of strawberry to aphids was positively related to the density of pubescences and the content of lignose, and negatively to the content density of stomas.
草莓品种对蚜虫抗性与叶片背面的茸毛密度成正相关，与气孔密度呈显著负相关；与叶片的木质素含量成正比； - Low storability of producing Juxian garlic scape was due to blacked stomas which gas injure easily occurs and strong parietal bundle and central bundle.
莒县薹耐藏性差与气孔被大量物质堵塞易造成组织内气体伤害以及周缘维管束和中央维管束发达有关。 - Sinensis has smaller leaves, more layers of epidermal hair and denser stomas than H. rhamnoides.
中国沙棘与俄罗斯沙棘及杂交品种相比叶片小，表皮毛层次多，气孔密度大，具有较强的耐旱性。 - The ordinary methods to observe the stomas as water slice, blotting, transparent tape, nail polish and so on.
常规观察叶片气孔的方法主要有水装片法、印迹法、透明胶带法和指甲油法等。