In the recovery process of sands, the dominant species was Agriophyllum squarrosun in the shifting sand, in the semi-fixed sands was Agrophron desertorum, semi-fixed sandy land and fixed sandy transition zone was Cynanchum komarovii and Cynancgum thesioides, and fixed sandy land was Hedysarum scoparium and Cynancgum thesioides.
除沙地恢复过程中人为播种的柠条和沙蒿外，流动沙地阶段的优势物种是沙米，半固定阶段是沙生冰草，半固定沙地与固定沙地过渡地带是老瓜头和地梢瓜，而固定沙地则为花棒和地梢瓜。
The free gas zone beneath the hydrate layer is an important part of methane gas hydrate resources with a big potential of recovery and exploitation.
天然气水合物下伏游离气是水合物系统天然气资源的重要组成部分，具有巨大的开发利用价值。
The recovery towards more enriched δ^13C values at Meishan section occurs in a zone of bed 27, but continued negative δ^13C values throughout the lower Induan in Dongpan section coincide with the marked recovery lag, which is probably related to continuously adverse conditions in the Early Triassic.
煤山剖面δ^13C负漂移从第27层就开始向13C富集的方向恢复，而东攀剖面δ^13C在下Induan阶仍持续亏损，表明东攀剖面早三叠世的生物复苏明显滞后于煤山剖面的。
Several inclined cavities with a series value of length-to-depth ratio L/D(subscript u, aft wall angle, aft wall depth D(subscript d, and H2 jet location L(subscript jet were evaluated for mixing enhancement and combustion stability. It is noted that the hot recirculation zone full of radicals in cavity is the paramount mechanism for stable flame holding. Moreover, combustor with L/D=7~9, θ=30°, D/D=1.0, and L=24mm is recommended regarding combustion efficiency and total pressure recovery.
通过对比分析不同凹腔长深比L/D，后缘倾角θ，后缘深度D和H2，喷射位置L对燃烧室性能的影响，发现凹腔的火焰稳定机制主要在于富含自由基的高温回流区；L/D=7~9，θ=30°，D/D=1.0和L=24mm的燃烧室强化混合燃烧的性能较好，可以获得较高的燃烧效率和总压恢复。
It is found that in both the polar cap and the auroral zone a F1 like peak of ionization appeared at 190km height during the main and recovery phases of the storm; while the normal F2 peak disappeared and great depletions of electron density occurred.
发现在磁暴主相和恢复相初期，极光椭圆和极盖区电离层都在大约 1 90km高度出现类似F1的峰，F2主峰完全消失，F区电子密度大幅度下降。
So far, the euro zone recovery is mainly dependent on the United States and other fast-growing export areas.
到目前为止，欧元区的复苏主要依赖于美国和其他快速增长的出口领域。
Shenzhen recovery on Electronic Technology Co., Ltd in Shenzhen, China special economic zone in the high-tech development zones are set development, development, production, sales as one of professional timer, and other electronic products manufacturer.
深圳市追日电子科技有限公司位于中国深圳经济特区内高新开发区，是集开发、研制、生产、销售为一体的专业计时器等电子产品的生产厂家。
For spacecraft recovery, the Mi-28MPS helicopter delivers operational and technical groups with rescue equipment to the landing zone.
MPS型还肩负宇宙飞船的回收工作，用于将技术人员空运到飞船降落区域，并将宇航员接回基地。
Numerical simulation indicate that productive capacity of peripheral low permeability zone for gas well is not be sneezed. Increase near well formation permeability, cut economic limit rate, prolong low pressure and low production stage to raise gas recovery of peripheral low permeability zone and improve single well recoverable reserves and raise gas well ultimate recovery. These are efficient paths to economic and effective develop bi-zonal compound low permeability gas reservoir.
数值模拟表明外围低渗区为气井提供的产能不可忽视，增加近井带渗透率，降低经济极限产量，延长低压、低产期，以提高外围低渗区的采出程度，增加单井可采储量，提高气井最终采收率是这类低渗气藏经济有效开发的有效途径。
Objective: To study the effects of rehabilitative training on function recovery and ultrastructure of nerve cells of cortical infarct marginal zone after cerebral infarction in rats.
目的：研究康复训练对脑梗死大鼠功能恢复及皮质梗死边缘区神经细胞超微结构的影响。
Rehabilitative training may promote the motor function recovery as well as the ultrastructure recovery of nerve cells of cortical infarct marginal zone after cerebral infarction in rats.
康复训练能提高脑梗死大鼠的运动功能，促进皮质梗死边缘区神经细胞超微结构的恢复。
A heat recovery system, utilizing the hot air from the draft fan at the first zone of a draft strand cooler for ignition, heat preservation and sintering is introduced.
本文介绍一个用抽风带冷机第一段的热风进行点火、保温和烧结的余热利用系统。
The author of this paper proposes a four zone partition behind a bluff body, namely, recirculation, primary jet flow, wakes recovery and sufficient development.
将正三角形钝体后尾迹流近似地分为回流区、射流主流区、尾流恢复区、充分发展区；
Numerical Analysis of Heat Transfer at the Tube Inlet Zone of a Heat Recovery Boiler
余热锅炉管口区传热的数值分析
The high viscosity, wax and gelatine of crude oil in transitional zone make it difficult to increase oil recovery by only water flooding displacement.
基于大庆油田过渡带地区地下原油黏度大，含蜡和含胶均高。
By reforming the traditional structure of the cooling zone in tunnel kiln, it has reached the effect on increasing the speed of cooling products and the recovery of residual heat.
通过改革隧道窑冷却带的传统结构，达到了加快制品降温速度和增加余热回收量的效果。
First, the dynamic mathematical models for the typical components of the heat recovery steam generator are built up on the basis of fundamental physical laws, which are composed of the single-phase region models (economizer、superheater and reheater) and evaporating zone model.
首先，从基本物理定律出发建立了余热锅炉典型部件动态数学模型，其中包括单相受热环节（省煤器、过热器和再热器）模型和蒸发区模型。
Comments on the Horizontal Tubular Air Preheater for Recovery of the Heat of Flue Gas and Reducing Corrosion at Low Temperature Zone
卧式管式空气预热器在锅炉烟气余热利用及耐低温腐蚀方面的探讨
A two dimensional mathematical model for ingot solidification has been established and new methods such as revised temperature recovery method, mean boundary radiation thermal flow and variable time-step length by zone have been applied in this paper.
本文建立了钢锭冷凝过程的二维数学模型，采用了修正温度回升法、平均边界辐射热流、分区变时间步长等新方法。
But the injection order, viscosity and density of injected water, position of high permeability zone, relative permeability and capillary pressure have less effect on condensate recovery.
而注入次序、注入水的密度和粘度、高渗层的不同位置、相对渗透率和毛细管压力对凝析油采收率的影响较小。