用大口径毛细管气相色谱法跟踪监测了西安地区夏秋两季14种蔬菜167个样品中有机磷农药残留量。
The residues of organic phosphorus pesticide were determined by large bore capillary gas chromatograph in 167 samples of 14 kinds of vegetables in Xi an region.
春祭梅花,夏祭桃花,唯一相同就是,花瓣都是粉红的。
Spring summer peach, plum, is one and the same, petals are pink.
春祭梅花,夏祭桃花,唯一相同就是,花瓣都是粉红的。
Spring summer peach, plum, is one and the same, petals are pink.
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