Different with common rice transplant, a new technology of rice transplant by scatter-seedling(scatter the seedlings over the paddy by hand or machine) was developed in early 90’s in China,and it had gradually been p...Different with common rice transplant, a new technology of rice transplant by scatter-seedling(scatter the seedlings over the paddy by hand or machine) was developed in early 90’s in China,and it had gradually been popular in the middle and lower regions of the Changjiang (Yangtze)River.展开更多
The method rising measuring resolution through reducing pitch of the transducer has brought forward from the basic structure, principle and the corresponding relationship among pitches of capacitive electrodes, period...The method rising measuring resolution through reducing pitch of the transducer has brought forward from the basic structure, principle and the corresponding relationship among pitches of capacitive electrodes, period T and phase shift of vv(x,t). But if the traditional technique of PCB made of the transducer is still used, it will meet with difficulties in lead wire. And so the technology transplant from the transducer to grating is presented, the basic principle of the phase modulation grating similar...展开更多
文摘Different with common rice transplant, a new technology of rice transplant by scatter-seedling(scatter the seedlings over the paddy by hand or machine) was developed in early 90’s in China,and it had gradually been popular in the middle and lower regions of the Changjiang (Yangtze)River.
文摘The method rising measuring resolution through reducing pitch of the transducer has brought forward from the basic structure, principle and the corresponding relationship among pitches of capacitive electrodes, period T and phase shift of vv(x,t). But if the traditional technique of PCB made of the transducer is still used, it will meet with difficulties in lead wire. And so the technology transplant from the transducer to grating is presented, the basic principle of the phase modulation grating similar...
