活塞上涂了一层石墨以减小摩擦力。The pistons are graphite-coated to reduce friction.咱们用车床车[加工]新的活塞吧.Let's get the lathe to turn the new piston.他们改用活塞发动机.They use a piston engine instead....
他们全都光着脚走过潮湿的沙地来到水边。They all walked barefoot across the damp sand to the water's edge.他们的喧闹声在凝滞而潮湿的空气中显得更吵了。Their noises were magnified in the still, wet air.有潮湿的木料和机油的气味。There was a smell of damp wood and machine oi...
These signs are followed by ataxia.这些症状之后就是共济失调.The typical clinical manifestations were vertigo, cerebellar ataxia as well as nystagmus.临床表现以眩晕、呕吐 、 小脑性共济失调、眼球震颤为主.Neurologic symptoms of hypermagnesemia are muscular wea...