气孔的

Mineralizer such as TiO2,Cr2O3 and ZrO2 with proper amount, have a beneficial effect on the formation of magnesium aluminate spinel solid solution and the densification of samples, and decrease of porosity.

外加适量的TiO2、Cr2O3、ZrO2矿化剂能促进镁铝尖晶石烧结和晶粒生长，提高试样的体积密度和抗折强度，降低显气孔率。

The strength of materials are controlled by porosity,modulus of elasticity,fracture energy and critical flaw sizes.

材料的强度是受气孔率、弹性模量、断裂能和临界缺陷尺寸控制的。

In this study, we investigated the rapid production of hydrogen peroxide (H2O2) induced by ABA in suspension culture cells of tobacco Nicotiana tabacum L.

最近的研究表明，在拟南芥保卫细胞中，NADPH氧化酶参与了ABA诱导的气孔关闭。

In addition, net photosynthetic rate, transpiration rate and stomatal resistance are affected by various environmental factors.

叶片的净光合速率、蒸腾速率及气孔阻力在整个生长季受到多个环境因子的共同影响。

And Pola stomatal coilia unique design and control procedures and physical strength, as well as save workers is also easily manipulated, run stable.

而波拉刀独特的气孔设计和精准的数字化控制流程，既节省工人体力，也便于操作，运行稳定。

The variations of the ratio between stomatal polar axis and outer stomatal ledge aperture, as well as leaf indumentum of Lasianthus species are well correspondent to their habitats.

粗叶木属植物叶气孔长轴径／径轴变化幅度比较大以及叶表皮上的毛被多样化均能反映其对生态环境的适应变化。

Porosity is the result of gas in the metal.

气孔是金属中的气体存在的结果。

In addition, the relationship between porosity and partial pressures of mixed gases was obtained.

同时也获得了Gasar凝固试样的气孔率随气体分压变化而变化的规律。

The results show that four kinds of activating fluxes used for getting rid of welding porosity is effective.

结果表明，所选用的四种活性剂对于消减钛合金焊接气孔都是有效的。

Diurnal changes of Pn and environmental factors (photosynthetic available radiation and air temperature and relative humidity) and physiology factors (stomatal conductance and transpiration rate and intercellular CO2) in leaves of puna chicory were measured using CI-340 portable photosynthesis system.

利用CI-340便携式光合仪，测定了普那菊苣叶片净光合速率和环境因子（气温、光合有效辐射、空气相对湿度）、生理因子（蒸腾速率、胞间CO2浓度、气孔导度）的日变化；通过回归和通径分析，考察了影响因子对净光合速率日变化的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。