C/N ratio can be taken as a rooting index of elm tip.
碳/氮比率可作为白榆新梢生根的指标。
The objective of this paper is to introduce the influence of different carbon source, such as methanol, sucrose, glucose and newspaper etc and the effect of C/N ratio on denitrification, .
本文论述了甲醇、蔗糖、报纸等不同物质作为碳源及其碳氮比对反硝化过程的影响，并对各碳源适宜的碳氮比加以总结。
The second had low phosphorus and low C/N ratio including fishes such as lower and middle carnivores such as Pseudosciaena polyactis, Platycephalus indicus and Argyrosomus argentatus.
第二类种类最多，主要包括小黄鱼、鲬和白姑鱼等中、低级肉食性鱼类，其元素组成特征为低磷、低C／N比值，；
Soil microbial biomass carbon, nitrogen and its C/N ratio are the important biological indicators characterizing soil quality.
土壤微生物生物量C和N及其C/ N比是反映土壤质量的重要生物学指标。
C and N conternt as well as C/N ratio can be taken as a rooting index of elm tip.
插穗中碳、氮的绝对量及碳 /氮比率可作为白榆新梢生根的指标。
The C/N ratio is commonly used in satellite communication systems to point or align the receiving dish;
C /N比率是卫星通信系统中常用的点或使接收天线；
The best carbon source is glucose, and the best nitrogen sources are peptone, beef extract paste and wheat bran. The most favorable ratio of C/N is 40: 1.
结果表明：最适宜的碳源是葡萄糖，最适宜的氮源是蛋白胨、麦麸、牛肉膏，最适宜的碳氮比是40：1。
The order of nutrient factors important on rooting rate were reducing sugers, C : N ratio, total N, starch , and soluble sugers.
营养因子对生根率的重要性顺序为：还原糖、C/N、全N、淀粉、可溶性糖。
The technology of stable C, N isotope ratio is an effective method for geographical origin traceability of beef.
利用稳定性碳、氮同位素技术是用于牛肉产地溯源的有效方法。
The nutrient return of the litters was closely related to the nutrient contents of the litters. The litter C/N ratio and P content could be the key indices for the litter decomposition.
竹林凋落叶的养分含量对凋落物养分归还有重要影响，尤其是C/N和P可能作为竹林凋落物分解的指示者。
The nutrient return of the litters was closely related to the nutrient contents of the litters. The litter C/N ratio and P content could be the key indices for the litter decomposition.
竹林凋落叶的养分含量对凋落物养分归还有重要影响，尤其是C/N和P可能作为竹林凋落物分解的指示者。
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