The comparative test of LNK871 rapid Kjeldahl distiller and semi-micro Kjeldahl appearance was reviewed in this paper.
对LNK871凯氏定氮快速蒸馏器和半微量凯氏定氮仪在蒸馏测定结果、蒸馏时间、回收率三个方面进行了比较试验。
The comparative test of twenty one species of perennial grass introduced into alpine cold pasture showed that in herbage yield and winter hardiness.
青藏高原高寒地区，多年生禾草混播草地是提高草地生产力、维护草地生态平衡的集约化牧业用地的最佳选择。
The comparative test was made, and the test data are analyzed and treated. It was found that the P S N curves determined by these three methods were approximate.
并进行了对比试验，使用文中方法统计分析试验数据，发现单点法、单点-成组法及成组法测定出的P-S-N曲线较接近。
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