在GPS遥感水汽过程中，大气干延迟模型的精度直接影响水汽遥感的精度。
The precision of atmospheric dry delay model is closely correlative with GPS water vapor's accuracy in the process of GPS remote sensing.
目的：确证压制（干压）包衣延迟释放片衣层处方。
Objective: To prove coat formulation of the delayed release tablets in vivo.
延迟追氮时期可使籽粒蛋白质含量和干、湿面筋含量有较大幅度地提高，但对产量形成不利。
Delaying topdressing nitrogen could evidently improve protein and gluten content, but it was disadvantageous to yield formation.
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