查询词典 nitrogen-free

The results indicated that the etiolation cause of the substrate mature leaf was the deficiency of available nitrogen in the soil. Spraying urea on the yellow leaves can turn the color of substrate mature leaf to green, but it does not have such effect on new shoots.

结果表明，土壤中有效N含量低是导致茶树下部成叶黄化的原因，喷施尿素能使下部成叶快速转绿，但并不能使上部新梢转绿。

Three sample plots of different habitat were selected in Yunnan and Sichuan to study effects of invasion of Eupatorium adenophorum on content of available nitrogen,available phosphorus and available potassium in soil.

选取云南、四川省3个不同生境作为样地，研究紫茎泽兰入侵对不同生态系统土壤中碱解氮、速效磷、速效钾含量的影响。

DATA SYNTHESIS: Il-17 exerted the biological function after combines with its receptor maybe induced the occurrence and the development of the osteoarthritis by the way of increasing the chondrocyte, expression of inducible nitricoxide synthase and nitrogen monoxide, boosting up the tbe chondrocyte and the expression of MMP-1/3/13, boosting up the activation of the aggrecanase and the collagenase, boosting the decompose of the cartilage proteoglycan and collagen, boosting up the monocyte evocable breakage of the cartilaginous matrix.

资料综合：白细胞介素17通过与其受体结合发挥生物学作用，其可能通过增加关节软骨细胞诱导性一氧化氮合酶表达和一氧化氮产量，增强软骨细胞基质金属蛋白酶（MMP-1／3／13）的表达，增强蛋白聚糖酶和胶原酶活性，促进软骨蛋白多糖及胶原降解，并增强单核细胞对软骨基质的破坏，从而诱导和加速骨关节炎的发生和发展。

The latest chemical product prices fell, demand has not really visible downstream, the short-term rise in oil prices in the channel, in which phase fluctuations, we continue to be optimistic about with anti-cyclical businesses and new materials, anti-cyclical embodies New Chemical Materials decrease in prices of raw materials is less than the decrease in prices of raw materials at the same time, the cost shift ability, to maintain price stability; civil explosive materials companies fell as a result, prices, countries can enjoy the benefits of; domestic urea production capacity excess of export disruption, high product costs, industry consolidation is inevitable, so concerned about the urea industry with technical advantages and cost advantages of urea enterprises: China Shandong Hengsheng; Although the overall situation of excess nitrogen, but because of the regional characteristics of the domestic fertilizer domestic part of the region will be in a high urea prices, the relevant listed companies will benefit from, such as the Liao Tung Chemical; compound assets as light industry, with the weak cyclical characteristics, the stability of industry profitability, industry leaders concerned about the compound: para Tian shares ; potash by the international market, short-term decline of domestic potash fertilizer prices would have difficulty, Salt Lake Potash in 2009 will be guaranteed a profit, Salt Lake Potash concern.

最新化工产品价格出现下跌，可见下游需求并未真正起来，短期石油价格处在上升通道，在这种上下波动阶段，我们继续看好具有抗周期性的新材料企业，抗周期性体现了化工新材料的产品价格下降幅度小于原料的下降幅度，在原料价格上涨同时，成本转嫁能力较强，价格维持稳定；民爆企业由于原料下跌，价格上涨，可以享受国家指导价的益处；由于国内尿素产能过剩，出口受阻，产品成本居高不下，行业整合在所难免，因而关注尿素行业内具有技术优势和成本优势的尿素企业：华鲁恒升；虽然氮肥全局过剩，但由于国内化肥的区域性特征，国内部分区域尿素价格将处于高位，相关上市公司将因此受益，如辽通化工；复混肥作为轻资产行业，具有弱周期性特点，行业盈利稳定，关注复混肥行业龙头：芭田股份；钾肥受制于国际市场，短期内国内钾肥价格恐难下跌，09年盐湖钾肥盈利将会有保证，关注盐湖钾肥。

Result patient of wet wart of acuteness of 79 gestation vulva, nurse through psychology, the mood is good 75, state of mind is stable liquid nitrogen of 4; classics is refrigerant after be being treated jointly with MEBO, leather damage achieves Zhou Yu of 1 week of ~2 to close, the 3rd month after art of apparent scar; is not being had after art is not had add excrescence newly, continue to follow visit to 6 months, have a relapse without, produce undesirable reaction without, stop without a patient gravid.

结果79例妊娠期外阴尖锐湿疣病人，通过心理护理，情绪良好75例，心态平稳4例；经液氮冷冻和MEBO联合治疗后，皮损创面1周~2周愈合，术后无明显瘢痕；术后第3个月无新增赘生物，继续随访至6个月，无一例复发，无一例发生不良反应，无一例病人终止妊娠。

It contains automobile exhaust fumes and nitrogen Oxides changed by the sun's rays.

这种烟雾含有汽车排放的废气和被阳光照射后发生变化的氧化氮。

Facultative biological model is adopted in municipal wastewater treatment of low nitrogen and phosphorus concentration at higher temperature.

分析了污水生物/生态处理工艺中的CIBR的兼性生化、AAA脱氮除磷二个模式的基本技术原理，酶促湿地协同净化技术原理，并建立了生物与生态协同的氮磷调控原则。

But had negative compound effect if their level were too high.5 Regressive analysis showed that the optimum compose of nitrogen, potassium and magnesium on yield and fecula contents of pumpkin was 267.8mg/L, 408 mg/L, 51.48 mg/L respectively.

计算机综合模拟寻优结果表明：当氮、钾、镁的元素含量分别为267.8mg/L、408mg/L、51.48mg/L，南瓜单果质量和淀粉含量最高。

The fermentability of Pichia stipitis NLP31 was hight on the fermentation medium with less expensive inorganic nitrogen source, thus reducing the cost of the fuel ethanol production.

树干毕赤酵母NLP31在以廉价的无机N源为发酵培养基上的乙醇发酵性能高，能够降低燃料乙醇的生产成本。

By adding ferrochrome into the converter and using the process of blowing, Ti was removed from the alloy and the nitrogen content in the molten steel was reduced to a very low level, thus greatly decreasing Ti hazard.

通过在转炉中加入铬铁吹炼去除合金中的钦，并且钢水中氮含量很低，最大程度降低了钛的危害。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。