名词解释题保护地气体毒害 gas toxicity of protected land
名词解释题
保护地气体毒害 gas toxicity of protected land
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According to the text, recycling ______.A. helps control the greenhouse effectB. means burning packaging for energyC. is the solution to gas shortageD. leads to a waste of land
How should cargo tank hatches be protected when the ullage opening is open and the tank NOT gas free?A.With gooseneck ventsB.With warning signsC.With flame screensD.With pressure-vacuum relief valves
Open ullage holes in tanks which are not gas-free must be protected by ______.A.PV valvesB.warning signsC.flame screensD.stop-check valves
环境大气对流层中的臭氧：（）。A、能吸收太阳高能紫外线辐射B、是一种氧化型光化学气体污染物C、保护地球生命免受紫外线危害D、危害作物的生长、发育、品质和产量E、对多种草本、木本植物有毒害作用
环境大气对流层中的臭氧（O3）（）。A、能吸收太阳高能紫外线辐射B、保护地球生命免受紫外线危害C、是一种氧化型光化学气体污染物D、对多种草本、木本植物有毒害作用E、危害作物的生长发育、品质和产量
单选题A combustible gas indicator is used to determine （）.Aif there is sufficient oxygen to support lifeBthe toxicity of flammable gases or vaporsCthe amount ofCO2 present in flue gasDthe presence of flammable gases or vapors in the air
单选题Controls for a fixed carbon dioxide system shall be mounted（）.Adirectly outside the space protected by the systemBas near the gas cylinders as possibleCin the pilothouseDon the main deck near the bow
单选题Open ullage holes in tanks which are not gas-free must be protected by（）.APV valvesBwarning signsCflame screensDstop-check valves
单选题0pen ullage holes in tanks which are not gas-free must be protected by（）.APV valvesBwarning signsCflame screensDstop-check valves
名词解释题惰性气体封舱条款（Inert Gas Gauging Clause）