气流

The field experiments on the secondary flow developed on the lee side show that there are strong sand transport potential at the lee side of the dunes near the surface because of the decreasing of the sand grain size and the other factors. The transport directions are nearly vertical to the dune trends. Those factors and the sand slumping on slip face, and the sand transport processes on the stoss slope make the transverse dunes maintaining their morphology under the advance processes.

对沙丘背风坡发育的二次流的野外观测表明，近地面一定高度内沙丘背风坡气流仍有一定的强度，由于背风坡的沙丘沙粒径较小等因素，背风坡气流仍保持一定强度的输沙率，输沙方向与沙丘走向基本上垂直，这种作用与沙物质向背风坡崩落、迎风坡的输沙过程等共同作用，因而使横向沙丘在运动中保持其形态。

At high r/min, flow speed is high, the friction noise dominates tailpipe noise.

在高转速阶段，气流速度也比较高，这时气流摩擦噪声决定尾管噪声。

To obtain frequency is mixed take the intermittent breath with sky adjustable comparing, put forward a kind to be based on gas to accuse reversal valve switch from oscillation loop, accuse throttle of series connection of mouth of forerunner of a powerful person through be being enraged, tone sheds a powerful person to leave successively degree, and control aerates to forerunner mouth time, control gas to charge the reversal time of a powerful person then, produce different frequency and the intermittent breath that take sky comparing.

为获得频率和占空比可调的间歇气流，提出了一种基于气控换向阀切换的自振荡回路，通过在气控阀先导口串联节流阀，调节节流阀开度，而控制向先导口充气时间，进而控制气控阀的换向时间，产生不同频率和占空比的间歇气流。

Using modified conventional powder metallurgy process for sintered Nd-Fe-B magnets , including annealing of ingot alloy, hydrogen decrepitating, modified jet mill and adding additive during jet milling, we have mass-produced high performance and high corrosion resistance sintered Nd-Fe-B magnets from a conventional ingot alloy without strict protections against oxidation.

利用改进的传统粉末冶金工艺(铸锭热处理、氢爆、改进型气流磨设备以及在气流磨中掺入添加剂等)，在无严格的防氧保护情况下，从传统合金铸锭出发，工业化生产出具有高耐蚀性的N48～50档烧结Nd-Fe-B 磁体。

A kinetic coal gasification model combining chemical equilibrium was developed to evaluate and optimize gasifying parameters in entrained flow bed gasification.

为评价和优化气流床煤气化中的气化方案和气化参数，从化学动力学角度并结合化学平衡，依据气流床特性建立了气化动力学模型。

A cinema model is simulated by the CFD software and several projects of air-flow organization are evaluated with the standard. The writer chooses the best project depending on the results of the evaluation, and the data of the chosen project can be inosculated with the results of the experiments and the articles.

本论文选取了一个物理模型，对几种气流组织方案进行了定量定性的分析，最终选取了一个比较合理的气流组织方案，分析的结果符合相关文献和实验的结果。

The meteorological conditions of Culex tritaeniorhynchus emerging in spring were not the same as that of the Anopheles sinensis which overwintered in local area but in conformity with the landing pattern of seasonal northward migratory insects,which were transported by the SW-air-current and the sinking airflow due to the passing through of the front with the rain-fall,or the shear of wind direction and the positive variations of atmospheric pressure.

结论三带喙库蚊春季首次出现的气象条件不同于已知在上海地区当地越冬的中华按蚊，而符合季节性迁飞昆虫北迁降落的气象条件：在迁飞虫源方向有西南气流输送，遇锋面过境伴降雨或风向切变及正变压，产生下沉气流，有利于迁飞昆虫北迁降落。

Air is clean spend and fall next bacterium are current air of product of province IVC system, isolator purifies Jiangsu to roughly two kinds of air current organize means, one kind sends a top to answer for the top: IVC remands wind filters through containing directly top of basket case case, horniness isolator remands on ben top wind; remands another kind to be the same as one side parallel: IVC remands wind contains filter film with a side face in basket box undertake inside aperture, soft qualitative isolator is sent by ben a side wind is answered on wind, means of two kinds of air current all is be not one-way and popular form.

目前实验动物相关国家标准对此类设备各项技术指标的检测并无说明，笔者对该类产品按江苏省地方标准[1]检测进行了初步的探索。1空气洁净度和落下菌目前江苏省IVC系统、隔离器产品空气净化大致有两种气流组织方式，一种为顶送顶回：IVC送回风直接通过含有过滤膜的笼箱盒盖，硬质隔离器在内室顶上送回风；另一种为同一面平行送回：IVC送回风在笼箱同一侧面含有滤膜孔内进行，软质隔离器由内室一侧送风对面回风，两种气流方式均为非单向流行式。

On the basis of experiment analyses we would got that, When arc met with chute, it was blocked and had a stagnation, this made hot gas flow incrase near the chute; After arc went into the chute, mental vapor from arc root would lower the dielectric strength near the chute, meanwhile, High value of arc voltage and the corase face of the chute made electric strength increase. These factors might give rise to local restriking near the chute, and made arc voltage drop suddenly.

总结实验结果并加以分析，本文提出了这样的观点：电弧进入栅片时，在入口处受阻后的停滞，会使该区域的热气流增加；进入栅片后，弧根蒸发的金属蒸汽、电弧热气流会降低栅片入口区域的介质强度；电弧被栅片分割后，电压急剧上升，再加上栅片表面的不均匀会使局部区域的电场强度显著增加，这些因素的综合作用会导致电弧在栅片入口附近发生局部重击穿，引起电弧电压电压跌落。

The function always enhances southerlies and brings heavy rainfall and more latent heating over tropical land to southeast of the Tibet , prevail northerlies , less rainfall and more sensible heating over tropical land to southwest of the Tibet .

结果表明，青藏高原的&热力滑轮&作用引起：高原东南面热带陆地上空的偏南气流加强，降水增加，凝结潜热加强；高原西南面热带陆地上空出现偏北气流，降水减弱，陆面的感热加热加强。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷