switch on and off中文是什么意思

• 开关通断

• switch    n. 1.(树上折下的)细树枝；软鞭子；鞭打。 2.假发 ...
• off    adv. 1.〔运动〕向那边，隔开。 be off 走， ...
• off switch    停机键; 停机开关
• on and off switch    电源开关,通断开关; 通断开关
• on off switch    双位开关; 通断开关
• on-and-off switch    通断开关
• on-off switch    换向开关; 启闭开关; 双位开关,双控开关; 转换开关
• switch off    避而远之; 关电; 关掉不理睬; 关上开关; 关饷; 截断，关闭; 开关断开; 切断，(用开关)关掉; 切断，关掉
• to switch off    关电门
• armed release-off switch    爆炸投弹电门
• audio cut off switch    音响断路开关
• automatic switch off    自动断路
• boo brake on-off switch    制动开关
• brake on-off switch    制动开关
• breaker on-off switch    断路器通断开关
• cut off out switch    切断开关
• cut off switch    断路开关; 切断开关
• electrical cut-off switch    电力截断掣
• expiratory off-switch mechanism    呼气切断机制
• gate turn-off switch    可关断可控硅开关; 门电路切断开关; 闸极遮断开关
• hand off-auto switch    手动
• horn cut-off switch    音响警告器电门
• inspiratory off-switch mechanism    吸气切断机制
• motor off switch    电动机切断开关
• motor on off switch    电动机起停开关

• Almost every program for programming a plc controller possesses various useful options such as : forced switching on and off of the system input / outputs ( i / o lines ) , program follow up in real time as well as documenting a diagram
  几乎所有用于为plc控制器编程的程序都拥有各种不同的选项，例如系统输入/输出（ i / o线）的强制开关，程序实时跟踪以及图表验证。
• The results of numerical experiments , using the four - dimensional variational data assimilation system of the nonhydrostatic mesoscale model mm5 , show that : the tangent linear model and adjoint model conducted by keeping the " on - off " switches the same as the basic state , can provide a good approximation of the first - order information to the nlm perturbation and a good descent direction for the minimization procedure ; switching on and off at every other time step in the kuo cumulus parameterization scheme do n ' t impact the convergence rate of cost function ; the existence of the switches do n ' t impact improvement to the mm5 model rainfall prediction because that not only specific humidity , but also wind , temperature and pressure are assimilated into the model
  非静力中尺度数值模式mm5的四维变分资料同化系统进行的数值试验结果表明： “开关”变量保持与基态一致，所构造的切向线性模式能够提供关于非线性模式扰动的一阶近似，伴随模式所计算的梯度值能够为最小化过程提供较好的下降方向；郭氏降水参数化方案中对流每隔一个积分步的交替发生并不影响目标函数最小化的收敛速度； “开关”变量的存在也不影响将风、温度、气压和比湿结合起来同化对mm5降水预报准确性的提高。
• On the one hand , the receiver must be self - adaptive to set as fast as possible the " 0 " and " 1 " bit level judgement threshold in a dynamic way ; on the other hand , the transmitter of onu should take some measures to minimize and compensate for the burst delay . the optical burst transmission circuit is thus required to switch on and off the laser in a snappy way to ensure fast signal sending . in that sense , the laser must be designed with a superb response speed
  一方面，接收机必须具有自适应功能，能以最快的速度动态调定" 0 " 、 " 1 "比特电平判决门限；另一方面， onu的发射机应该采取-定的措施减小和补偿突发时延，其光突发发送电路要求能够非常快速地开启和关断激光器，迅速发送信号，所以，它需要使用响应速度很快的激光器。