土壤水分状况(Soil moisture regimes)
第1题:
A hygroscopic cargo is defined as a cargo ______.
A.capable of absorbing moisture in the form of a gas
B.capable of giving off moisture in the form of a liquid
C.that is shipped in a liquid state
D.that will ignite in contact with water
第2题:
水分对树木生长也有()、()和()的三基点,树木生长的最适土壤水分>蒸腾的最适土壤水分>同化的最适土壤水分。
第3题:
土壤是一个氧化-还原体系,土壤水分状况,土壤中有机质和硫的含量都处于动态变化之中。
第4题:
森林土纲系列包括的土纲有()。这些土纲主要分布在()气候区,其土壤的共同特征是()或强酸性、土壤水分状况多为()。
第5题:
土壤质地影响土壤水分、空气和热量的状况,同时也影响着养分的转化。
第6题:
()是指大小不同土粒不同组合反映的土壤粗细状况,它会影响土壤水分、空气、热量运动和土壤()类型。
第7题:
activate the driers
change color
secure the compressor
add a predetermined amount of liquid drier
第8题:
第9题:
Absolute moisture content of the air surrounding a hygroscopic cargo when moisture equilibrium exists
Dew point temperature that the air surrounding a hygroscopic commodity will have when in moisture equilibrium with that commodity
Enthalpy of the air surrounding a hydroscopic cargo which is in moisture equilibrium with the cargo
Temperature at which moisture equilibrium will occur in a cargo hold containing a hygroscopic cargo
第10题:
absolute humidity
specific humidity
effective humidity
relative humidity
第11题:
第12题:
To transport water to high places.
To provide air conditioning.
To fertilize the soil.
To adjust the soil temperature.
第13题:
The moisture equilibrium chart can be used to determine the ______.
A.Absolute moisture content of the air surrounding a hygroscopic cargo when moisture equilibrium exists
B.Dew point temperature that the air surrounding a hygroscopic commodity will have when in moisture equilibrium with that commodity
C.Enthalpy of the air surrounding a hydroscopic cargo which is in moisture equilibrium with the cargo
D.Temperature at which moisture equilibrium will occur in a cargo hold containing a hygroscopic cargo
第14题:
简述影响土壤水分状况的因素。
第15题:
旱田进行灌溉时,计划调节控制土壤水分状况的土层深度称为()。
第16题:
土层(soil horizon)
第17题:
根据土壤水分所受力的作用,土壤水分类型分为()、()、()。
第18题:
土壤多糖 soil polysaccharide
第19题:
above
below
equal to
uncertain
第20题:
as a mass of warm,humid air rises into the atmosphere and cools,condensing moisture into small droplets
as winds blow across bodies of water,the sun causes the moisture to be absorbed and move upward forming clouds
dry air compresses moisture from the atmosphere into clouds
when the relative humidity of the atmosphere is low
第21题:
absolute humidity
relative humidity
specific humidity
total humidity
第22题:
less moisture than cold air
more moisture than cold air
the same amount of moisture as cold air
moisture independent of air temperature
第23题: