One set of provisions tightens emission standards.一套使排放标准更加严格的规定.Requires no special tools or fittings; hand tightens to relief valve outlet.不需要专用工具或管件; 用手将其紧固到安全阀上即可.The heart tightens at the grandeur we've already...
Whenever recession strikes, a chain reaction is set into motion.只要经济不景气，连锁反应就开始了。America has enough firepower in the area to mount sustained air strikes.美国在该地区拥有足够的火力发动持续的空中打击。Many strikes over the last few years have no...