以下为句子列表：
英文: This paper deals with the problem of non-uniform weed numbers obtained with all types of random sampling methods, discussing the importance of statistical control methods in herbicide efficacy evaluation and showing pertinent calculations.
中文: 针对随机取样中的各样方内杂草数目不一致问题，讨论了统计控制方法在除草剂药效评价中的重要性以及计算过程。
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