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gas welding equipment - hose connections for welding, cutting and allied processes
气焊设备.焊接、切割和相关工艺用软管连接。
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gas welding equipment - air-aspirated hand blowpipes - specifications and tests
气焊设备.吸气式手持喷焊枪.规范和试验
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gas welding equipment - safety devices - not incorporating a flame (flashback) arrestor
气焊设备的安全设施.单项物质燃烧(倒转)制动器
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气焊设备。小于等于300bar的焊接、切削及相关工艺用多头管系用压力调节器
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gas welding equipment - rubber hoses for welding, cutting and allied processes.
气焊机.焊接、切割和相关工艺用橡胶软管
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气焊设备.焊接、切割和相关工艺用带截止阀的速动连接
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gas welding equipment. hose connections for equipment for welding, cutting and allied processes.
气焊设备.焊接设备,切割和连接技术用软管连接
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气焊设备.焊接、切割和相关工艺用乙炔复式接头系统.高压装置的安全要求
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气焊设备.焊接、切割和类似工艺用300巴以下的气瓶调压器
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气焊设备.能承受最大检验设计气压为450巴的压缩和液化气用橡胶和塑料软管组件
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treatment efficacy of propofol combined with small dose ketamine in indolence misbirth
丙泊酚复合小剂量氯胺酮用于无痛人流的效果观察
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if the trains are not safe, what of the banking system or the management of the economy itself?
如果列车不安全,那么银行业体系或者经济本身的管理呢?
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in the management of the economy he has trusted sensible technocrats, including mr aziz.
他任命了许多理性的专家来管理国家经济,其中包括现任首相阿齐兹先生。
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