As one of the key fields of NGN, automatic switched optical network (ASON) has been paid great attentions by carriers and will enter a stage of large-scale deployment.
作为NGN在传输网的关键领域，自动交换光网络(ason)已经引起各个运营商足够的重视，即将进入规模部署阶段。
Increasing spikelet number per panicle is one of the key factors for high yield, and panicle differentiation is the important stage for spikelet number formation.
拔节长穗期是争取大穗的关键时期，每穗粒数是产量的主要构成因素之一，尤其是争取高产更高产，其作用更为突出。
Increasing spikelet number per panicle is one of the key factors for high yield, and panicle differentiation is the important stage for spikelet number formation.
拔节长穗期是争取大穗的关键时期，每穗粒数是产量的主要构成因素之一，尤其是争取高产更高产，其作用更为突出。
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