查询词典 taxodium distichum

The physical and mechanical properties of Taxodium 'zhongshansha 302' and Taxodium distichum were studied.

对中山杉302和落羽杉两种木材的部分物理力学性质进行了测试比较分析。

Most of the content of nutritive substance declined with the emergence of callusing and rooting. The conventional rule of C/N value didn't suit for Taxodium distichum.

随着愈伤组织和不定根的出现，多数营养物质含量呈下降趋势，传统的C/N规律对落羽杉扦插并不适合。

Through simulated soil dynamic submergence in the hydro-fluctuation belt of the Three Gorges Reservoir Region,four different kinds of water treatment were applied to examine the mechanism of the nutrient changes in soils of Taxodium distichum seedlings.

三峡库区消落带土壤淹水的周期性常年变化，势必影响到土壤营养元素含量、土壤肥力、土壤理化性质等土壤特性的变化(Ponnamperuma，1972；李其林等，2004；杨刚，2004)，但土壤营养元素含量的影响是导致土壤其他特性发生相应变化的根本原因之一(金为民，2003；岳庆玲等，2007)。

Results show that the basic density, air-dry density, bending strength, modulus of elasticity, and compressive strength parallel to grain of T.'zhongshansha 302' are higher than those of T. distichum, and the oven-dry shrinkage and the air-dry shrinkage in tangential and volume are lower than those of Taxodium distichum, and the differences are all prominent at the 0.05 level.

结果表明：中山杉302木材的基本密度、气干密度、抗弯强度、抗弯弹性模量和顺纹抗压强度的平均值均比落羽杉高，而弦向全干干缩率、体积全干千缩率、弦向气干干缩率、体积气干干缩率均比落羽杉低；其差异都在0.05水平显著。

Simultaneous determination of N, N-Dimethylaniline and phenol in wastewater by high-performance liquid chromatography with chemiluminescence detection; 2 rapid determination of rudimental trace aniline in indigotine by reverse phase HPLC; 3 determination of the levels of tetracycline and oxytetracycline residues in liver tissue by HPLC-CL; 4 rapid determination of Shikimic acid in taxodium distichum by ion-suppression reversed-phase HPLC.

第二节是高效液相色谱及其与化学发光柱后检测技术在药物分析中的应用，研究了四环素、土霉素的HPLC-CL方法，应用于动物肝组织中四环素、土霉素残留量的测定；并研究了用离子抑制-反相高效液相色谱法快速测定落羽杉中的莽草酸的新方法。

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。