气孔

An LI-1600 porometer was used to measure transpiration of Artemisia ordosica and Caragana korshinskii in four quadrats of a soil water balance experimental plot at the Shapotou Desert Research and Experiment Station.

本研究利用LI-1600气孔计测定了沙坡头试验站土壤水分平衡观测场4个样地的油蒿和柠条的蒸腾。

Many researchers have determined and estimated tree transpiration by using the methods of rapid weighting, steady-state porometer, photosynthesis system, whole-tree photometer, ventilated chamber, weighting potted-plant, sap flow measurements, lysimeter, water balance, energy balance, Bowen ratio, eddy covariance, Penman-monteith Method, and remote sensing.

针对不同的植被覆盖类型，国内外许多研究通过各种手段和方法，如快速称量、稳态气孔计、光合作用测定、整树容器、风调室、盆栽称量、液流测定法、蒸渗仪、水量平衡、能量平衡、波文比、涡动相关、彭曼联合法和遥感等来估算林木蒸腾作用。

Peanut or rice wereplanted in the large-scale weighing Lysimeter,pit plots,and standard runoff plots,wherehigh,moderate,and low soil moisture levels were designed as 3 treatments,assemblingwith some instruments such as time domain reflectometry,portable photosynthesis system,dew point microvoltmeter,and porometer.

季节性干旱缺水严重制约着我国红壤区农业的持续发展。1999～2000年在中国科学院红壤生态实验站，利用大型称重式蒸渗仪、测坑小区和径流小区，配合时域反射仪、光合蒸腾仪、水势仪及动态气孔阻力计等仪器，设计高、中、低3种土壤水分处理，进行了花生和早晚稻试验。

SiC/Al composites were fabricated by pressureless infiltration technique, based on infiltration dynamics mechanism and technic method ,the effects of holding time and cooling way on the residual porosity of composites were discussed.

采用无压浸渗法制备了SiC/Al复合材料，从浸渗动力学和工艺方法的角度探讨了浸渗保温时间和降温方式对复合材料的残余气孔率的影响。

All porosity is a void in the material and it will have a higher radiographic density than the surrounding area.

所有气孔都是材料中的空洞，它比周围区域的黑度要高。

The microstructure and thermal physical properties of the surface reactional layer determine the range of strength improvement.Stress relaxation was benifical for strength,but the oxidation-induced bubbles and crack weaken the specimens.

热处理引起的应力松弛也有利于材料强度的提高，但氧化过程中产生的表面气孔及冷却过程中产生的表面微裂纹会引起材料强度的下降。

While in Sect. Uniflos, leaf epidermal cells are usually irregular in shape, repand or sinuous in pattern of anticlinal wall, the stomata are anomocytic, and staurocytic, tetracytic, isotricytic besides.

植物叶表皮细胞常不规则型，垂周壁多浅波状，气孔除无规则型外还兼有十字型、四分体型和等三体型。

There is a seizing here. Reweld it please.

这里有气孔，需挖掉后再修补。

We'll have the roentgenoscopic selective examination of the 10% welded seams.

这个焊口检查发现有明显的气孔和超长的咬边，不合格

The results of observation on the microstructure of Karelinia caspica, Tamarix stromongolica, Salsola collina. Cheno Dodium glaucum, stipa bangenana show that the nutritional organs of these halophytes present some adaptability structures as follows:(1) sunken stomas, thick cuticle and orderly arrangement of epidermal cell;(2) equilateral leaves with developed palisade tissue, or squama-shaped leaf;(3) well-developed water-storing tissue in stems and leaves;(4) crystal cells, salt glands in most of the leaves and assimilating branches.

通过对花花柴、甘蒙怪柳、猪毛菜、灰绿藜、长芒草五种盐生植物显微结构观察，这五种盐生植物营养器官的形态结构均呈现一定的适应性特征：(1)气孔器下陷，角质层加厚，表皮细胞排列紧密而整齐；(2)多为等面叶，叶片栅栏组织发达，或退化为鳞片状，而具同化枝；(3)茎、叶多为肉质化，贮水组织发达；(4)具有含晶细胞，枝叶具盐腺。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！