Accurate targeting is extremely difficult in B mode ultrasound guided HIFU therapy.
靶区精确定位是B超引导HIFU治疗的一个难题。
The traditional agro-technical extension is a up-to-down mode in China, which is to use advanced technique strategy to the targeting farmers.
我国传统的农业技术推广模式是农业技术自上而下传播模式，这种模式选择了针对资源丰富农户的进步农民策略推广策略。
The traditional agro-technical extension is a up-to-down mode in China, which is to use advanced technique strategy to the targeting farmers.
我国传统的农业技术推广模式是农业技术自上而下传播模式，这种模式选择了针对资源丰富农户的进步农民策略推广策略。
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