查询词典 nitrogen-free

Insufficient data is available to determine whether jute yields are also experiencing diminishing returns to nitrogen application.

没有足够的数据来证明黄麻的产量是否对氮肥施用亦呈边际报酬递减。

As an example, Table 2 shows the relationship between the yield of jute and the amount of nitrogen and potash applied.

例如，表2是施用氮和钾与黄麻产量的关系，资料来源于中加钾肥项目1986年在广东省的大田试验。

The Quadratic-Orthogonal-Rotation-Combination is used to analysis the effect of Nitrogen, Phosphate,Kainite, Sulphur, Lemon acid and BR in this study.

本试验采用二次正交旋转组合设计对氮、磷、钾、硫、柠檬酸、油菜素内酯进行分析。

Determination of nitrogen Kedar will be the composition of copolymer.

凯达尔定氮法测定共聚物的组成。

However, the key environmental factors for the topsoil (0-20cm) organic carbon lability were vegetation coverage, 20-30cm belowground biomass, 0-10cm,10-20cm and 20-30cm underground soil moisture, soil organic matter, soil labile Potassium and soil total Nitrogen content.

影响表层土壤活性有机碳含量最关键的环境因子是地上生物量、0~10cm地下生物量、30~40cm地下生物量、20~30cm土壤含水量、0~20cm土壤容重、20~40cm土壤容重和土壤全N量；影响表层土壤有机碳活度最关键的环境因子则是植被盖度、20~30cm地下生物量、0~10cm土壤含水量、10~20cm土壤含水量、20~30cm土壤含水量、土壤有机质、土壤速效K和土壤全N量。

Nitrogen was used as carrier gas and the area normalization method was applied to calculate the content of the crude lactide.

采用TP-5毛细管柱，以氢火焰离子化检测器检测，N2为载气，以校正面积归一化法计算粗品丙交酯中各组分的含量。

Nicrate nitrogen and phosphate in liquid medium were quickly consumed at the lag phase of the growth, the consumption rate was 16.71 μ g/ml d and 1.67μ g/m d, respectively; but during the rapid-growth phase, its consumption rate was decreased.

在毛状根生长迟滞期内，培养基中的硝态氮和磷酸盐的消耗较快，其消耗速率分别为16.71 μg／ml·d和1.67μg／ml·d；但在快速生长期，其消耗速率反而减慢。

The experiments were conducted to investigate the effect of nitrogen,phosphorus concentration and the algae-inhibiting effect of Laminaria japonica on the multiplication of P.tricornutum.

本文研究了不同氮磷营养浓度对三角褐指藻生长的影响，以及海带对赤潮藻生长的抑制作用。

Methods: Separate and abstract the effective components of Huangqi (Omni-Saponin、total-flavone) and Danshen (Danshen-ketone、 Danshen-Quinone). Applying L-Arginine methyl ester to pregnant rats by I. P to make Nitrogen Oxide Synthesis blocking models (uterus-placenta-fetus lacking blood and oxygen model or pregnant hypertension syndrome model). On day 12, 18 of pregnancy paunched the rats and took out the fetus and placenta/uterus. Measured the basal BP during pregnant period and BP、protein、basal activity each day. Observed placenta/deciduas ultramicroscopic structure by electron microscope and took count of languishment cells. Measured the expressive intensity of bcl-2、Bax of placental nutrient cells by SABC method.

一氧化氮合成酶阻滞剂L-精氨酸甲酯妊娠大鼠腹腔给药，制作一氧化氮合成阻滞模型（子宫-胎盘-胎儿缺血缺氧或妊娠高血压模型），妊娠第12、18天剖腹取胎、胎盘／子宫，妊娠期测基础血压，每日测血压、蛋白质量、基本生理活动；电镜观察胎盘／蜕膜超微形态结构，并进行细胞凋亡计数；免疫组化检测胎盘滋养细胞bcl-2、Bax表达强度；原位杂交法检测胎盘滋养细胞、血管内皮细胞VEGF、eNOS、iNOS、MCP-1、MMP9（基质金属蛋白酶9）mRNA表达。

With the increase of nitrogen dose, the amount of AIN increased, and the degree of saturation increased too, so the lattice constant of implanted layer increased.

随氮注入剂量的增加，AIN析出相的数量增加，铝合金中氮的过饱和程度增加，因此材料表层的点阵参数增加。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。