以下为句子列表：
英文: Furthermore, the horseshoe shape vortex system occurred to the upstream of the jet exit and the layer structure of vortexes occurred to the wake of the reverse flow region downstream of the jet are also investigated.
中文: 另外，观测到射流喷口上流的马蹄涡系以及射流逆流区下游尾迹区旋涡的层状结构形式。
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英文: It is mandatory to prevent the reverse flow of fire protection system substances, i.e. glycerin wetting agents, stagnant water and water of non-potable quality from being pumped or siphoned into the potable water line.
中文: 这种装置强制性防止消防系统物质，如湿甘油剂，停滞水和非饮用级的水通过泵吸或虹吸进入饮用水系统中。
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英文: It is mandatory to prevent the reverse flow of fire protection system substances, i.e., glycerin wetting agents, stagnant water and water of non-potable quality from being pumped or siphoned into the potable water line.
中文: 这种总成强制性防止消防系统流体介质的倒流(回流)，如甘油润湿剂，积滞水和非饮用水，防止这些流体介质泵吸或虹吸进饮用水管道。
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英文: It is mandatory to prevent the reverse flow of fire protection system substances, i.e., glycerin wetting agents, stagnant water and water of non-potable quality from being pumped or siphoned into the potable water supply.
中文: 这种应用强调必须防止下列消防系统物质，如甘油，润湿剂，积滞水和非饮用级别的水由于泵吸或虹吸作用回流到饮用水供应系统中。
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英文: Its products comprise various types of electrostatic precipitator、long bag low pressure pulse、positive(negative)pressure reverse flow 、rhombus bag filter(explosion proofing and ordinary type) 、pulsant rotary reverse flow flat bag filter、gas-box pulse bag
中文: 主要产品有各种型号的静电除尘器（管极式及极板式）、长袋低压脉冲袋式除尘器、正（负）压反吹大布袋除尘器、菱形袋式除尘器（防爆型及普通型）、脉动反吹扁袋回转式除尘器、气箱脉冲除尘器等收尘设备；烟气脱硫设备、水处理设备及各种规格的非标设备。
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