查询词典 developed

But beach berm and aeolian dunes are poorly developed.

但滩肩和海岸沙丘发育均不明显。

The main factors affecting the soil-structure interface behaviors were found experimentally and theoretically, including: 1 the thickness of the interface that is five to six times the average grain size of the soil; 2 the aeolotropy of interface, which is responsible for anisotropic response of the stress-strain response of the interface; 3 two physical states, including crashing and compression of the soil near the structure surface, which govern the stress-strain response of the interface strongly; 4 two shear deformation components due to sliding and constraint of the structure surface relative to the soil respectively, which forms the deformation of the interface; 5 the volumetric strain due to dilatancy, which is found to be composed of a reversible dilatancy component and an irreversible dilatancy component. 4. A unified constitutive model of the interface, based on new elasto-plasticity damage theory, was developed. It was confirmed to be effective for the conditions considering monotonic and cyclic shearing, coupling effect of shear and volumetric strains, evolution of physical state, micro-structure aeolotropy of the soil and the resulting aeolotropy of the interface as well as the three normal boundary conditions stated above. 5. 2D and 3D finite element formulations of the present model were derived and incorporated into the FEM codes. They were applied to the evaluation of practical engineering problems with different typical interfaces between soil and structure. The new model was shown to be reasonable and effective.

确定了粗粒土与结构接触面厚度约为5～6倍的平均粒径，首次揭示了接触面的细观结构异向性以及由此所引起的宏观剪切异向性，发现了在单调和往返剪切荷载作用下土颗粒破碎和剪切压密两种物态变化机制共同支配着接触面力学性质的变化，通过细观分析证实了接触面的变形可分解为一般同时发生的土与结构交界面上的滑移变形以及结构面位移约束范围之内土体本身的剪切变形两部分，观测到接触面受剪时表现出明显的相对法向位移，并可分解为可逆性和不可逆性两个分量；(4)建立了第一个能够统一地描述单调与往返剪切特性、剪应变与体应变耦合特性、细观结构和宏观剪切异向性以及土颗粒破碎等物态变化特性的土与结构接触面弹塑性损伤本构数学模型，并采用多种法向边界条件复杂加载路径的试验成果验证了新模型的合理性和有效性；(5)提出了新模型的二、三维有限元格式并结合实际边值问题进行了应用计算分析，比较了不同接触面本构模型对计算结果的影响，证实了新模型及其有限元格式不仅能够合理地描述土与结构接触面的主要力学特性，还能够较好地反映土体与结构物在接触面处的滑移、脱开等不连续现象。

A new type of jet aerator (separate structure jet aerator ) was designed and developed,and an idea of separate design was put forth.

设计研制了一种新型的射流曝气器，提出了分体式设计的概念，它主要应用于小型和高浓度工业废水的实际处理工程中。

Developed aerenchyma tissue could restrain significantly the As translocation from root to shoot in rice plant and the As accumulation in rice shoot.

发达的通气组织结构显著抑制了As由水稻地下部到地上部的转运以及地上部对As的吸收：扬稻6号地上部As含量为10.77mg·kg-1，显著低于农垦57（12.85mg·kg-1）；扬稻6号对As的转移系数为0.067，仅为农垦57的73.6%。

In nutrient solutions,deoxygenation caused a series of changes in root ana-tomy of some species,such as increased root diameter,root porosity and more developed aerenchyma,inducing a ROL barrier in root basal part and the consequent change of ROL profile.

溶液培养条件下，缺氧胁迫能使植物根的直径增粗，根孔隙度提高，通气组织更加发达，诱导根基部泌氧屏障的生成，使泌氧速率和泌氧方式发生变化。

The results showed that compared with soil culture, the root cap was not obvious with less amyloplast and polysaccharose substance under water culture. The root epidermis under water culture was thinner than that of soil culture, with little root hair or not, in which cortex parenchyma tissue developed with big cell, solution proliferative aerenchyma in intercellular space, and thin cell wall. However, the root cap under soil culture was big, with strong PAS reaction and no aerenchyma tissue.

结果表明：水培后根冠不明显，淀粉体较少，多糖类物质较少而土培根根冠体积较大，淀粉体较多，多糖类物质多，土培根PAS反应强烈；水培根表皮厚度比土培根小，水培根根毛少或退化消失；水培根皮层薄壁组织发达，细胞大型，壁薄，细胞间隙中含有溶生性通气组织，土培根皮层未见通气组织。

And the six-component force sensor system designed for the compound test on the aerodynamic force and inertia force is developed in this paper. The main work is as follows.

六分力传感器能同时检测到三维空间的全力信息，是随着机器人技术的发展而出现的一种新传感器。

The aerodynamic forces experiments for rigid and flexible wing are tested on the aerodynamic force measure equipment which is designed and developed by ourselves.

探讨了神经网络在驻飞飞行的姿态控制系统中的应用，最后采用MATLAB软件对控制系统进行了仿真分析。

A distribution law of aerodynamic force and moment is further developed from the genera formulas cooperating with the Navier-Stokes equation.

利用 Navier-Stokes 方程求出动力学涡量的变化率，进一步把力和力矩表示成一些显式积分。

The device has been developed with the use of aerodynamical principle, measuring technique for feeble signal, and integration of machine-electricity. The gas percussion, rigid impact, and cell injury can be produced by altering impact tip.

应用空气动力学原理、微弱信号检测技术和机电一体化的方法研制而成，通过更换撞击头可实现柔性撞击、刚性撞击和细胞损伤，通过眼、脑、肺和细胞进行实验研究。

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。