At low frequencies, such as 10 per sec., pulsation is sensed rather than vibration.在低频率(譬如每秒十次)时, 所感觉到的是脉冲而非振动.Objective Discuss sterilization effect of B - class pulsation table top vacuum pressure steam sterilizer for ...
At low frequencies, such as 10 per sec., pulsation is sensed rather than vibration.在低频率(譬如每秒十次)时, 所感觉到的是脉冲而非振动.If the roller pulsation, the pressure on paper as cause misregister.如果滚子径向跳不静, 则差纸的不张辛有不小有小,致使套印禁绝.Vortexing ...
“我不想要它，”埃里克微弱地尖声说。"I don't want it," Eric bleated.他的声音微弱地传到我们这儿.His voice came faintly to us.这个人还有呼吸, 而且他的心脏还在微弱地跳动着.He was still breathing, and his heart was beating weakly....
I'm petrified of snakes.我特别怕蛇。I've always been petrified of being alone...我总是害怕孤单一人。...a block of petrified wood.一块木化石I've always been petrified of being alone.我总是害怕孤单一人。Most people seem to be petrified of...
Forts and churches almost always go together , and yet they're downright contradictions.有要塞的地方,就一定有教堂, 然而,这两者显然是水火不相容的.The warships opened fire on the forts.几艘军舰向堡垒开火.Forts are framed for defense.建筑城堡是为了防御....
High permeability, low coercivity and low loss can improve the efficiency of power supply.高磁导率 、 低矫顽力、低损耗能提高电源效率.S. condition and coercivity of functional.′条件与泛函的强制性之间的关系.The remanence, coercivity energy product decrease...