Because of the differences of erection angle during missile launching time,the jet flow in jet pipe which has the properties of high temperature and high velocity,erodes and ablate the antenna of launch vehicle.

在發(fā)射過程中，由于導(dǎo)彈發(fā)射時(shí)日本在线免费不卡视频，起豎角不同三级做a全过程在线观看软件，噴管處的高溫高速燃?xì)鈱?duì)發(fā)射車天線的沖刷和燒蝕，不同程度地影響地面通信在线日本高清日本免费网站。

And the southwest low level jet and southeast low level jet provide it strong warm advection and vapor transport.

低空有西南和東南風(fēng)急流為其提供強(qiáng)的暖平流和水汽通道欧美一级电影在线看。

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

設(shè)計(jì)研制了一種新型的射流曝氣器，提出了分體式設(shè)計(jì)的概念亚洲一级aⅴ无码毛片不卡，它主要應(yīng)用于小型和高濃度工業(yè)廢水的實(shí)際處理工程中黄色网站久久aaa。

The results show that, when the fuel supply position is located at the forebody of cavity, the jet flow of fuel supply has certain damage to vortex, and when the fuel supply injection is located at the afterbody of cavity, the jet flow of fuel supply has no damage to vortex.

實(shí)驗(yàn)表明，供油位置在凹腔前體黄片在线免费看A片，油氣摻混孔處的射流對(duì)渦有破壞免费无码高精品视频色欲，供油位置在凹腔后體，油氣摻混孔處射流對(duì)渦沒有破壞作用日本一区二区在线播放，在不考慮供油方式等因素的情況下乱伦性爱一区无码，凹腔后體供油優(yōu)于凹腔前體供油。

This paper establishes a physical model Based on this technology; explains the mechanism and methods; Analyses revolve jet's kinetic characteristic; studies how revolve jet affects manually produced borehole wall's buildup; designs the hydraulic tool; analyzes the relation of waterpower between the tool and the aiguille.

本論文建立了基于該項(xiàng)技術(shù)的井下物理模型中文字幕日韩电影在线，并以流體力學(xué)為研究基礎(chǔ)分析了該項(xiàng)技術(shù)防漏堵漏的機(jī)理和方法男人的天堂人人摸人人操；通過對(duì)旋轉(zhuǎn)射流的運(yùn)動(dòng)特性的分析，研究了射流對(duì)"人造井壁"形成的影響在线看片y；設(shè)計(jì)了水力工具国内熟妇人妻色在线视频99，對(duì)側(cè)向水力工具與鉆頭的水力能量分配關(guān)系進(jìn)行了研究。

Experimental results indicate that the effect of air curtain to prevent smoke diffusion is remarkable as the volume ratio of air-smoke is about 0.6, the jet angle is between 25° and 35°, and the jet thickness is between 25 mm and 45 mm.

實(shí)驗(yàn)結(jié)果表明欧美一级情欲视频在线播放不，當(dāng)空氣幕流量與煙氣流量之比為0.6左右，空氣幕射流厚度在25-45 mm且射流角度在25°-35°之間時(shí)，空氣幕對(duì)煙氣能起到很好的阻隔作用欧美大黄8岁进入内射。

"I did not expect the jet in M87 or any other jet powered by accretion onto a black hole to increase in brightness in the way that this jet does," says astronomer Juan Madrid of McMaster University in Hamilton, Ontario, who conducted the Hubble study.

&我無法預(yù)測(cè)M87核心噴流或者其他由黑洞補(bǔ)充的噴流的增亮行為&2021国产三级片在线观看，哈勃研究專家組帶頭人、加拿大安大略省哈密爾頓市麥克馬斯特大學(xué)的天文學(xué)家胡安免费裸体黄网站视频无码。

Comparison between the stress of swirling and common jet nozzle tells that the former maximum stress is far larger that the latter. It can explain that the wear of swirling jet nozzle is more severe than common jet nozzle. The way how various parameters effect the wear of the nozzle is carefully studied in the article.

對(duì)比了旋轉(zhuǎn)磨料射流噴嘴和普通磨料射流噴嘴的應(yīng)力情況大人看的网站，結(jié)果表明：前者的最大應(yīng)力遠(yuǎn)大于后者，這可以很好地解釋旋轉(zhuǎn)磨料射流噴嘴比普通射流噴嘴磨損嚴(yán)重的現(xiàn)象美女网站视频国产精品。

The force on the jet pipe in the hole jetted is analyzed, and it is indicated that the resistance on the jet pipe is the main factor influencing the feeding of jet pipe.

分析了噴管在噴孔內(nèi)的受力69视频网站，指出噴管在噴孔內(nèi)所受的阻力是影響噴管送進(jìn)的主要因素，據(jù)此調(diào)節(jié)噴管送進(jìn)控制液缸控制腔的壓力可控制送進(jìn)速度和限制最大推力晚上看的91网站。

It firstly did numerical simulation towards pulsed liquid jet pump's throat pipe when it was working on different area ratio, different length of throat pipe, different working situation. Then it analyzed and proposed the optimization length of throat pipe on pulsed liquid jet pump; In chapter 5, it did experimental study on the fundamental performance of steady and pulsed liquid jet pump, then compared the experiment result with numerical simulation result, this approximately agreed with each other.

首次對(duì)脈沖液體射流泵在不同面積比97碰碰日本乱偷人妻中文的、不同喉管長(zhǎng)、不同工況下的喉管內(nèi)部流場(chǎng)進(jìn)行了數(shù)值模擬欧美黄色性生活视频，分析提出了脈沖液體射流泵的最優(yōu)喉管長(zhǎng)度范圍成年超爽视频在线播放；第五章對(duì)恒定、脈沖液體射流泵的基本性能進(jìn)行了試驗(yàn)研究欧美偷拍一区二区三区，對(duì)比試驗(yàn)結(jié)果和數(shù)值模擬結(jié)果久久黄片美女出来，二者吻合較好。