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。 - 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。 - 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。 - 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。 - In particular condition and in the heat solution, using exchange reaction the calcium carbonate of duck's eggshell was transformed hydroxyapatite biomaterial, which contained quantities of stomas.
在特殊的条件下，将鸭蛋壳（主要成分碳酸钙）经过热液交换反应转化为多孔羟基磷灰石生物材料。 - Germ-tube always branched into several tubes and infected two stomas, or several tubes infected one stoma at the same time.
芽管常形成树杈状或根状分枝，一个芽管分别侵入两个气孔或几个芽管同时侵入一个气孔。 - Whereas, the stomas of the upper epidermis of the thin-leave type settle strongly, there are no dividing between palisade tissue and spongy tissue in the diachyma, the vascular bundle sheath consists of lignification and suberin cells.
细叶型的叶上表皮气孔强烈下陷，叶肉无栅栏组织和海绵组织的区别，由木质化或栓质化细胞形成维管束鞘。 - 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。 - Bursting pressure of the stomas was measured in groups A and D.
测定A、D组吻合口破裂压。 - 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；