HART protocol which is the transitional protocol of field-bus allows transferring both digital signal and analog signal simultaneously in order to actualize bidirectional communication.
HART协议是现场总线的一种过渡性协议，可使数字与模拟信号同时传送且互不干扰，实现双向通讯。
HART communication protocol which belongs to transitional protocol introduced in this paper is rudiment of field bus, which permits transmitting digital signal on analog signal circuit.
HART协议是现场总线的一种过渡性协议，可使数字与模拟信号同时传送且互不干扰，实现双向通讯。
The transitional product-specific safeguard regime is one of the most controversial issues in the China's Accession Protocol.
特定产品过渡性保障机制是中国入世议定书中最具争议的内容之一。
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