He measured the speed at which ultrasonic waves travel along the bone.他测出了超声波穿过骨头的速度。Set up ultrasonic wire bonding laboratory.成立超声波电子焊接实验室。Modern medical technology like type-B ultrasonic checks can reveal the fetus gen...
Synopsis Shou Heng is like a fixed star, always confident and attractive.故事大纲守恒就像恒星一般, 永远自信,总吸引所有人的目光.The synopsis of the book is very good.这本书的梗概非常好.Synopsis: Luis a peasant boy, fantasizes about catching an airplane re...
Because of him, Arbor Day was set up in Nebraska.因着他的努力, 内布达斯卡州设立了植树节.You may have heard of Arbor Day at school.你可能在学校里听过植树节.Later on, each American state started to celebrate Arbor Day.后来, 其它州也跟进,开始庆祝植树节....
It is this hydrostatic pressure that maintains the turgidity of plant parts.就是这种流体静压维持植物各部分的膨胀度.The velocities are independent of hydrostatic pressures.速度与流体静压力无关.A point worth emphasizing is that hydrostatic equilibrium...