氧气

To avoid loss of drilling tools and even well abandonment due to downhole fire or explosion during air drilling in pay zones, we developed a novel downhole fire or explosion prevention sub, a kind of downhole tool made of low meltingpoint alloy, designed to shield off oxygen so as to put out fires. This sub is connected to the upper part of dill bit.

为了解决空气钻井在钻遇油气层时，发生井下燃爆，造成埋钻具、井眼报废等复杂情况，基于阻断氧气使火熄灭的思路研制出了一种低熔点合金制造的井下工具--空气钻井燃爆灭火阀。

Hundreds of thousands of fish turned belly up in a breeding pond due to low levels of oxygen in the water--a result of sudden weather changes, according to officials.

据官方称，由于天气骤然变化，导致饲养池中的氧气含量降低，致使成百上千的鱼死亡。

Maybe you are on a hill or the flattest section of the course. Your mind is telling your legs and arms to drive, pump or fire like pistons, but your muscles are crying out for mercy. We are demanding them to perform at a rate at which they are not conditioned.

或许比赛路线中有一些山坡，你的心里告诉自己要像活塞一样摆臂迈腿，然而你的肌肉却在可怜的哭泣，你要求肌肉以不适应的速度运动，而且你的身体也无法提供足够的血液和氧气来达到你心目中的要求。

Foetal distress is usually measured by the baby having a very increased or decreased heart rate, before birth, or if the baby is not getting enough oxygen.

胎儿的困扰通常是衡量婴儿有一个非常上升或下降，心率，在出生之前，或如果婴儿是没有获得足够的氧气。

Main products: air positive pressure breathing apparatus, fire air-breathing apparatus, oxygen breathing apparatus, air pumps, fire pumps, long pipe respirators, escape respirators, bubble guns, life jackets Lights, ring lights, raft lights, oil and water separator, protective clothing, thermal insulation suits, anti-chemical warfare suits, insulated clothing, rescue suits, life jackets, fire-fighting equipment, file mice, show-lights, the release, of 10 minutes, gongs,, Fog bell, life-saving floating cable, firemen and equipment, fire ax, fire-resistant rope, fire boots, helmets, Ruanti, horn, pyrotechnic signals, throw rope, throw rope equipment, sacrificial anode, life-saving fire equipment company from France international BVQI Quality system certification of ISO9001: 2000 quality management system.

主要产品有：正压式空气呼吸器、消防空气呼吸器、氧气呼吸器、充气泵、消防泵、长管呼吸器、逃生呼吸器、泡沫枪，救生衣灯，圈灯，筏灯，油水分离器，防护服，保温服，防化服，隔热服，救生服，救生衣，灭火器材，档鼠器，示位灯，释放器，号钟，号锣，雾钟，救生浮索，消防员装备，消防斧，耐火绳，消防靴，头盔，软梯，号角，烟火信号，抛绳器，抛绳设备，牺牲阳极，救生消防器材公司通过由法国BVQI国际质量体系认证的ISO9001：2000质量管理体系。

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。

More than 80% of Japan's steel is now made in oxygen furnaces, the highest proportion in the world.

现在80%以上的日本的钢铁由氧气炉生产，这在世界上是比例最高的。

The LCD display indicates all installed sensor types and measured values for each gas as well as battery status and other information.

使用者最多加入五种随插即用感应器模组(电化学的毒性气体和/或氧气、红外线的CO2、PID或触媒燃烧式可燃性/易燃性气体)。

The application of the alloy that can effectively reduce the release of hydrogen, the special technique in manufacturing grid, and the appropriate match of active materials of both negative plates and positive plates, all these enable spiral valve-regulated sealed lead-acid battery, greatly restrain the release of hydrogen from negative plates, at the same time the generated oxygen, due to overcharge of positive plates, arrive at negative plates through the diaphragm and compose with lead in the negative, thus enable the recombination of gas inside of the battery and prevent the case of water loss so that water addition is free.

双登卷绕式阀控密封铅酸蓄电池通过采用具有极高析氢过电位的合金通过特殊工艺制造板栅，同时对正负极活性物质量的合理匹配等工艺措施，使得负极上发生的析氢过程得以最大限度地受到抑制，同时正极因过充电所产生的氧气通过隔膜到达负极，并与负极上的铅发生反应，生成水，这样便使得电池内部气体的再复合，防止失水，实现免维护。

The application of the alloy that can effectively reduce the release of hydrogen, the special technique in manufacturing grid, and the appropriate match of active materials of both negative plates and positive plates, all these enable spiral valve-regulated sealed lead-acid battery, greatly restrain the release of hydrogen from negative plates, at the same time the generated oxygen, due to overcharge of positive plates, arrive at negative plates through the diaphragm and compose with lead in the negative, thus enable the recombination of gas inside of the battery and prevent the case of water loss so that water addition is free.

卷绕式阀控密封铅酸蓄电池通过采用具有极高析氢过电位的合金通过特殊工艺制造板栅，同时对正负极活性物质量的合理匹配等工艺措施，使得负极上发生的析氢过程得以最大限度地受到抑制，同时正极因过充电所产生的氧气通过隔膜到达负极，并与负极上的铅发生反应，生成水，这样便使得电池内部气体的再复合，防止失水，实现免维护。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。