气室

Some conclusions are followed:(1)the reaction ratio of boron is 12% in primary combustion;(2)the degree of agglomeration can be decreased adopting boron coated with AP;(3)the content of oxygen is very important for afterburning efficiency;(4)the afterburning efficiency will be changed with different air-gas ratio;(5)the head distance of after-burning chamber is increasing, the circumfluence in the head of after-burning chamber is stronger and the distribution of fuel backward the after-burning chamber is more well-proportioned.(6)the combustion efficiency of DR will be improved by increasing the area of fuel nozzle.(7)the angle between dual air-inlets have complex influence with the combustion of DR.

通过本项研究，取得如下结论：（1）一次燃烧硼反应比例在12～15％之间；（2）AP包覆硼，可以降低硼结团度，有利于一次燃烧喷射效率的提高，也有利于硼在补燃室进行二次燃烧；（3）进气空气中的氧含量对二次燃烧非常重要；（4）对于一定配方的含硼富燃推进剂，不同的空燃比，二次燃烧效率不同；（5）补燃室头部距离的增加能增强补燃室头部回流以及提高燃料在补燃室后段分布的均匀性；（6）在一定范围内，增加一次燃气喷嘴面积能提高冲压发动机燃料的燃烧效率；（7）进气道夹角对补燃室内燃料的燃烧影响复杂。

The comparison with the conventional surge tank for a hydropower station with long tailrace tunnel shows that the damping type surge tank with air hole possesses the advantage of higher minimum water level in surge tank with little variation of negative pressure at the outlet of spiral case.

以西南地区带有尾水调压室的某大型水电站为例进行制气式和常规开敞式两种调压室方案的比较计算，计算结果表明，采用制气式调压室可使蜗壳出口最低负压并没有显著变化的同时提高调压室的最低水位，从而减小工程量，节约投资。

This invention relates to an apparatus for testing permeability coefficient of low-permeability rock medium, which comprises a sensor, a temperature control box and a flowmeter both connected to the triaxial chamber with a gas injection port and a gas outlet on ends, a rigid press axle pressure and rigid press confining pressure system. Wherein, arranging an axial/lateral pad in the said chamber, and setting a horizontal strain gage chain and clamp.

本发明公开了一种低渗透岩石介质渗透系数测试仪，它由传感器、温控箱、刚性压力机轴压、刚性压力机围压系统构成，流量计与三轴室相连，温控箱与三轴室相连，在三轴室内装有轴向垫片和侧向垫片，在三轴室筒壁上装有横向应变计链子，在三轴室一端有注气口，另一端装有排气口，在三轴室上装有横向应变计夹子。

An embedded mine refuge chamber lifesaving cabin body is arranged inside a mine chamber; the cabin body is a sealed inflated flame-retarding double-layer lifesaving cabin body; a compressed air pipeline port running through the cabin body and a communication data interface are arranged on the cabin body; and a double-line central oxygen supply lifesaving system, a carbon dioxide absorber, a power carrier communication machine, a UPS power source, an RFID personnel identification system, a visual safety monitoring system, an automatic toxic and harmful gas detector, a sealed physiological excretion discharger and a survival food storage cabinet are arranged inside the cabin body.

本发明提供了一种嵌入式矿井避难硐室双气路集中供氧救生系统，它为在矿井硐室内部安设有嵌入式矿井避难硐室救生舱体，舱体为阻燃密封双层结构充气式救生舱体，在舱体上设置有穿过舱体的压风管路接口和通讯数据线接口，其内部设有双气路集中供氧救生系统、二氧化碳吸收器、电力载波通讯机、UPS电源、RFID人员身份识别系统、视频安全监控系统和有毒有害气体自动检测仪、密封生理排泄器和生存食品储备柜，双气路集中供氧救生系统连接有空气、氧气集中供氧面罩，并连接压风管路接口，电力载波通讯机连接通讯数据线接口。

Its main products include compress screw spring, extension spring, torque bar spring, torsionbar spring, circlet spring, drum spring, pagoda spring, butterfly spring, steel-plate spring, flat worm wheel spring, window spring of windowmachine, membrane spring, undee spring, mould spring, rectangle steel spring, steel-plate pagoda spring, swing damping spring, truck air-chamber trig spring, and motorcycle damping spring, made of 0.2-75mm diameter square and rectangle stainless steel and tin bronze.

主要产品：种类有压缩螺旋弹簧、拉簧、扭簧、长簧、鼓形弹簧、宝塔形弹簧、碟簧、钢板弹簧、平面蜗卷弹簧、摇窗机弹簧、膜片弹簧、波形弹簧、模具弹簧、方扁钢弹簧、钢板宝塔弹簧、各类轿车、微型汽车悬挂减震弹簧、摩托车前后减震弹簧、载重汽车气室制动弹簧等，规格从钢材直径0.2-75mn，有方形钢、扁钢，有各种不锈钢和锡青铜弹簧等。

Inflatables have pretty dinky interior spaces due to their chunky tubes and forward-mounted transoms.

长一点的船内部可利用空间多一些，而通常充气船的内部空间被粗大的气室和船头的形状限制。

By combining the theory of aerodynamics with water hammer equation and wave equation of surge tank a mathematical model for this type of surge tank is established.

为研究制气式调压室的运行机制，运用空气动力学原理，结合管道水锤方程、调压室波动方程，建立了制气式调压室的仿真数学模型。

Single-chamber solid oxide fuel cell is a novel type fuel cell that operates at a mixture of fuel and air.

单气室固体氧化物燃料电池是一种工作在燃料和空气混合气氛下的新型燃料电池。

A characteristic method is used to research into the hydraulic resonance system of a pipe- air chamber ,indicating that with a proper structure parameter and fluid parameter,the system will improve the amplitude of the end-point pressure of the pipe.

采用特征线法对用导管-气室水力共振系统提高脉冲水射流的强度进行了模拟研究，表明水力共振系统在合适的系统结构参数和流体参数情况下，可以提高导管出口处的压力振幅。

Gas chromatographic analysis of 2-chloroethyl ethyl carbamate WANG Yue-feng, YANG Rui, SHE Yong-hong, ZHANG Hong-chao (Sanonda Zhengzhou Pesticide Co., Ltd., Zhengzhou 450009, China) Abstract: Separation and quantitative determination of 2-chloroethyl ethyl carbamate was conducted using gas chromatography with FID using an OV-101 packed column and biphenyl as the internal standard. Column temperature was 190℃, the ignition chamber was 230℃, and the test chamber was 230℃.

2-氯乙基氨基甲酸乙酯气相色谱分析王跃凤，杨睿，佘永红，张宏超(沙隆达郑州农药有限公司，郑州 450009)摘要：采用气相色谱法，柱填充物为3% OV-101涂渍在 Chromosorb W AW DMCS (180~250m)上，柱温：190℃，气化室：230℃，检测室：230℃；内标物为联苯，用内标法对2-氯乙基氨基甲酸乙酯有效成分进行分离和检验。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。