查询词典 diffusion cloud chamber

A method and apparatus for increasing the propelling force of pulse engine features that the fuel nozzle of pulse explosion engine is arranged in combustion chamber to close jet tube exit, and the fuel is reversely sprayed out to generate a shock wave barrier near the jet tube for preventing the airflow from flowing out of the combustion chamber, resulting in raising the pressure in combustion chamber and in turn increasing the propelling force.

本发明公开了一种提高脉冲发动机推力的方法和装置，它是通过将脉冲爆轰发动机的燃料嘴置放在燃烧室中靠近喷管出口附近，并使燃料逆向喷出，在燃烧室内靠近喷管附近形成一道阻止气流流出燃烧室的激波，激波的作用是使燃烧室压力升高，从而的到较大的推力。同时由于本发明的结构特别的简单，所以实现非常容易，并且工作效果十分显著。

Septum bore of Transwell double-layer cell culture plate was 0.4 μm. In the co-culture group, osteoblasts were incubated in the upper chamber. In the control group, osteoblasts were not incubated in the upper chamber. Bone marrow mesenchymal stem cells were incubated on the pretreated coverslip in the lower chamber in both groups, for 20 days.

Transwell双层细胞培养板的隔膜孔径为0.4 μm，共培养组于培养上室接种成骨细胞，对照组培养上室未接种细胞，两组培养下室均于预处理的盖玻片上接种骨髓间充质干细胞，培养20 d。

In the design of fire water supply system in flight area of new Baiyun International Airport,explanation was given to the selection of pipe materials,anticorrosion of pipeline,and setting up of fire hydrant chamber,valve chamber,and water hydrant chamber,as well as the special treatment and notes for pipeline running through runway.

飞行区内的消防给水系统设计与一般的设计存在着很大差别，结合广州新白云国际机场飞行区的消防给水系统的设计，对消防给水管道材质的选择，管道防腐，消火栓井、阀门井、给水栓井的设置，以及管道穿越跑道时的特殊处理和注意事项进行了阐述。

Aiming at the problems of anti-jamming and apparatus security in measuring the Electrothermal-Chemical Gun's chamber pressure at present, and based on knowing the problems of doughty electromagnetism jam and voltages fluctuate in the course of ETCG's launch, we studied the measurement of ETCG's Chamber Pressure by use of the multilayer shield technology which solved the ETCG's chamber pressure testing problem, and the results were prove to be satisfied.

针对当前电热化学炮的膛压测试技术中存在的强电磁干扰和仪器安全性问题，在了解电热化学炮发射过程中的几种强电磁干扰和地电位浮动问题的基础上，引入了利用多层组合屏蔽技术的电热化学炮膛压测试技术，解决了电热化学炮膛压的测试问题，获得了良好的数据。

It was found that electrical field strength and potential around the the sample changed less in the fully insulated chamber than in conducting material phytotron, so it is closer the real condition. Based on the design, the first fully insulated large artificial climate chamber in China, in which temperature , humidity, and atmospheric pressure can be regulated, has been built in our laboratory. The paper developed an insulation parameters automatic test system of high voltage capacitive equipment based on LabVIEW. In the chamber, On-line tanδmeasurements of the capacitive transformer bushings were completed. The effects of environmental factors on tanδwere analyzed, and the curves between the tanδand the environment parameters were acquired. Then, a grey relational model to analyze the effects of main environmental factors on tanδwas built, and the grey relational grade between them was gained in this paper.

完成的主要工作和取得的主要研究成果如下：提出了全绝缘型人工气候室设计方案，计算分析了气候室内悬挂绝缘子和套管时的空间电场分布情况，并和金属材质气候室相比较，论证了该方案的优越性，据此方案研制的全绝缘人工气候室可调节温度、湿度和压力等参数，满足了人工气候试验的要求；开发了基于虚拟仪器技术的高压电容型设备绝缘特性自动测试系统，完成了人工气候室内变压器套管tanδ的在线测量试验，以此为基础分析了环境因素对电容型设备tanδ的影响情况，获得了tanδ与环境参数的关系曲线，建立了环境因素对tanδ影响的灰关联分析模型，得到了主要环境参数与电容型设备tanδ的灰关联度。

Its main production environment testing, the mechanical material testing equipment, main products have Standard / Programmable constant temperature and humidity machine, walk-in constant temperature and humidity room, the aging chamber, hot and cold impact testing machines, vibration test machine, drop test machine, compression tension tester, salt spray test machine, ultraviolet radiation, rain test chamber, sand and dust and all kinds of oven chamber, but also according to customer demand for design and production of non-standard environmental testing equipment and various types of large-scale trial into the climate Room.

其主要生产环境试验、力学材料试验设备，主要产品有标准型/可程序恒温恒湿机、步入式恒温恒湿室、老化试验箱、冷热冲击试验机、振动试验机、跌落试验机、压拉力试验机、盐雾试验机、紫外光照、淋雨试验箱、砂尘试验箱及各类干燥箱，还可根据客户的需求设计生产非标环境试验设备及各类大型步入气候试验室。

Can be seen from the diagram, claw-type rotor pump chamber is divided into suction chamber and exhaust chamber in two parts.

由图可见，泵腔被爪型转子分隔成吸气腔和排气腔两部分。

The introduction passage has a first portion extending from an opening portion of the rear housing along a wall of the discharge chamber and along a wall of the suction chamber to the suction chamber.

导入通道具有第一部分，该部分从后部外壳开口部分沿排出腔的壁和吸入腔的壁延伸至吸入腔。

This laboratory crucible salt bath structure, the furnace shell is made by the steel plate and the section welding, the chamber conserves energy the fire-proof material by Gao Lvzhi to be made, the chamber uses the aluminum silicate textile fiber heat preservation in the furnace shell, the resistancewire uses the 0Cr25Al5 heating element, circles makes the spiral-shaped arrangement in the chamber string silk hole all around.

本实验室坩锅盐浴炉结构，炉壳由钢板和型钢焊接制成，炉膛由高铝质节能型耐火材料制成，炉膛于炉壳间采用硅酸铝纤维保温，电阻丝采用0Cr25Al5发热元件，绕制成螺旋状布置在炉膛四周的串丝孔内。

This laboratory crucible salt bath structure, the furnace shell is made by the steel plate and the section welding, the chamber conserves energy the fire-proof material by Gao Lvzhi to be made, the chamber uses the aluminum silicate textile fiber heat preservation in the furnace shell, the resistance wire uses the 0Cr25Al5 heating element, circles makes the spiral-shaped arrangement in the chamber string silk hole all around.

本实验室坩锅盐浴炉结构，炉壳由钢板和型钢焊接制成，炉膛由高铝质节能型耐火材料制成，炉膛于炉壳间采用硅酸铝纤维保温，电阻丝采用0Cr25Al5发热元件，绕制成螺旋状布置在炉膛四周的串丝孔内。

The changes of the HAF after liver injury may be related to the volume of blood loss, the intraabdominal pressure and the pneumoperitoneum duration.

肝撞击伤伴失血后肝动脉血流量的变化与失血量、气腹压力以及气腹持续时间等有密切联系。

Reneging on our commitments to the world's poor cannot be an austerity measure, she said.

放弃我们给世界上的穷国的承诺不能成为一种紧缩措施。