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reverse frequency position 倒置频率位置
The reversion frequency is increased by the addition of mutagents. 逆转的频率靠加入诱发变因素而增加。
The reverse frequency of donor and receptor for auxotroph and resistance is less than 10~(-9), protoplast transformation is carried out in SMM containing 30% oolyethene glycol (MW 6000) and 20mg/ml DNA at controtledtime and temperature. 转化子有的是原养型,有的在含利福平(10单位/亳升)和链霉素(200单位/亳升)的培养基上能生长,也有的兼而有之。
Comparing with positive realness, finite frequency positive realness is a new notion, and also finds some important applications in control theory. 相比于正实性，有限频率正实性则是较近提出的概念，并且亦在控制理论中找到了大量应用。
Our army suffered a slight reverse. 我们的部队受到轻微的挫败。
The 50p coin has a crowned lion on its reverse. 50便士硬币反面的图案是个戴皇冠的狮子。
I twisted my head round to reverse the car. 我扭过头去把汽车向後倒。
To reverse one's position or policy. 食言或变卦改变某人的立场或方针
The car has four forward gear and one reverse gear. 那汽车有四个前进挡和一个倒挡。
The reverse of the coin was stamped with an eagle. 硬币的反面压印的是一只鹰。
She then looked at the reverse side of the coin. 接着她看了看钱币的反面。
Children's shoes aren't cheap quite the reverse. 儿童的鞋并不便宜--反而更贵。
high frequency positive pressure jet ventilation 高频正压射流通气
He varied the transmission frequency. 他变换了无线电传送的频率。
high frequency positive pressure ventila-tion 高频正压通气
In the opposite way or reverse order. 正相反在方向或顺序上的正好相反
high frequency positive pressure ventilation 高频正压通气
The superpowers are putting the arms race into reverse. 超级大国正在把军备竞赛转换成相继裁军。
A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
The car has four forward gears and one reverse gear. 那汽车有四个前进挡和一个倒挡。