查询词典 biomass

These work has led the SPR become a powerful research tools in analysis of biomass components and dynamics.

这些研究工作已使SPR成为一种强有力的分析生物物质成分，并进行动力学过程研究的手段。

The effect of soil water defficiency on the accumulation and allocation of root biomass of spring wheat.

土壤水分亏缺对春小麦根系干物质积累和分配的影响。

In flask shaking culture, the output of CDEP-1 increased in parallel with the accumulation of biomass during the logarithmic growth phase and reached the peak value in stationary growth phase, then fleetly decreased in decay period.

摇瓶发酵结果表明，在对数生长期，随着菌体生物量的增加，CDEP-1产量上升，二者呈一定的平行关系；当菌体生长到稳定期，CDEP-1产量继续上升，并达到产酶高峰；此后，随着菌体生长的衰退，CDEP-1产量出现快速下降趋势。

The biomass of rice were not affected by partial-root water stress under those three nitrogen forms, but root parameters of sole nitrate supply decreased significantly under water stress compared to non-water stress part. Water stress stimulated the absorption of NO_3~--N. The photosynthesis rate was inhibited by water stress under NO_3~--N supply, but no effects under NH_4~+-N supply.

局部根系水分胁迫对3种供氮形态营养水稻总生物量没有明显影响，但对单供NO_3~--N营养水稻根系的生物量、根系总长、根体积、平均直径以及根表面积的影响最大，均以未受水分胁迫的一侧根系生物量明显高于另一侧。

The ratio of biomass between stolon and adventitious roots was an important index of injured degree.

切断后受损程度的大小，主要取决于地上生物量与不定根生物量的比值。

The result indicated that soil moisture change affected biomass distribution in different organs, i.e., accumulative CO2 assimilation distribution. White clover could escape drought by increasing dry matter distribution in stolon and root system.

结果表明：土壤水分变化首先影响到生物量在植物不同器官的分配，即累积性的CO2净同化产物的分配，白三叶能够通过提高匍匐茎、根系的干物质分配比例来回避干旱。

Only fir sawdust bio-oil has eugenol which has antibacterial,stomachic,anesthesia,lowing blood pressure and other pharmacological effects.(4) The vacuum pyrolysis mechanism of biomass was studied according to the chemical composition and molecular structure of raw material and the structure of bio-oil components.

4根据原料的化学组成、分子结构以及真空热解产物生物油组分的结构，对生物质真空热解制备生物油的机理进行了初步探讨，得出生物油主要组分的形成机理。

Combined with the characteristic that biomass can vary in a wide range, the error function of the traditional BP network is improved. Meanwhile, optimal stopping rule is used to avoid over-fitting.

结合菌体浓度变化范围大这一特点，将传统BP网络的误差函数进行了改进，并利用最优停止法对网络进行训练，避免了过拟合现象。

The damage caused by Cl in strawberry was less than that of Na~+ and Ca~+ far away.3.Membrane damage in root and leaf of strawberry was relief by Ca(NO_3)_2,CaCl_2 and Ca_2 treatment under NaCl stress, while leaf holding ability and chlorophyll content was enhanced, growth was improved and the biomass increased.

低浓度Ca(NO_3)_2、CaCl_2和Ca_2作为外源钙均能减轻NaCl胁迫对草莓成株根系和叶片的膜伤害，提高叶片保水力和叶绿素含量，改善草莓的生长状况，提高生物产量。

Corn stalk ; stubble remained in field ; application of fertilizer ; soil fertility ; soil microbial biomass carbon

玉米秸秆；根茬；施肥；土壤肥力；土壤微生物量碳

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。