Maintenance of continues low level nitrate with sufficient supply of phosphate, namely low N:P ratio, may facilitate the growth of Alexandrium tamarense.
维持培养液中适当低的氮水平，并保证足够量的磷供应即较低的氮磷比是促进塔玛亚历山大藻生长的重要原因。
Relationships between sulfide capacity or sulfide capacity index and sulfur partition ratio and between phosphate capacity or phosphate capacity index and phosphorus partition ratio were derived.
推导了炉渣硫化物容量(或容量指数)与硫分配比及磷酸盐容量(或容量指数)与磷分配比的关系。
Furthermore, as the ratio of phosphate to sulfate increases the product quality (grade and recovery) improves, which emphasizes the effect of the phosphate ion as a depressant for phosphate minerals.
此外，因为硫酸磷比例进步产物质量(品位和收受接管率)进步，这强调作为抑止剂用于磷酸盐离子效应磷等矿物质。
The utilization ratio of phosphate fertilizer in potatoes was negatively correlated to available phosphorus in soil.
马铃薯磷肥利用率与土壤速效磷含量呈负相关。
The effects of preparing conditions, such as particle size of the solid component, liquid-to-powder ratio (L/P) and liquid composition, on compressive strength of calcium phosphate were investigated.
考察了固相组分颗粒尺寸、液固比（L/P）和固化液组成等对骨水泥抗压强度的影响。
The tobacco yield, value of output, average price and rate of first-class tobacco leaves could be also increased by increasing the application ratio of serpentine-fused phosphate.
提高钙镁磷肥的施用比例，烤烟的产量、产值、均价、上等烟率等也相应提高。
Consequently, it is necessary that how to apply phosphate fertilizer rationally and raise the utilization ratio of phosphate fertilizer.
因此，研究保护地番茄磷肥的合理施用，提高磷肥利用率已成为迫切需要。
The effects of the ratio of reactants to organic solvent, reaction temperature and concentration of aqueous sodium hydroxide on the yield of trim-tolyl phosphate were investigated.
以该反应收率为目标，研究了反应物料与有机溶剂的配比、反应温度和碱液浓度等因素的影响。
Craft: After RO (75% returns-ratio) the thick synaeresis must achieve a level discharges the standard, polymerization phosphate removing.
工艺：经ro(75%回收率)浓缩水需达到一级排放标准，聚合磷酸盐的去除。
Craft: After RO (75% returns-ratio) the thick synaeresis must achieve a level discharges the standard, polymerization phosphate removing.
工艺：经ro(75%回收率)浓缩水需达到一级排放标准，聚合磷酸盐的去除。
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