查询词典 nitrogen-free

One-time fertilization at present rate did not have effects on nitrogen nutrient in water nor duckweed productivity.

以目前剂量施肥一次对水中氮类营养及浮萍生产力并无效应。

MASNMI Y%KANA A%SENZO U Carbon and nitrogen stable isotope ratios of the tissues and gut contents of a dugong from the temperate coast of Japan Mammal Study , 2004,null

蔡德陵%李红燕%唐启升%孙耀黄东海生态系统食物网连续营养谱的建立：来自碳氮稳定同位素方法的结果中国科学C辑， 2005，2

BW- 20 water oils dual purpose heavy nitrogen sensitization glue fitting be used for PCB, Advertisement scutcheon, China turns printing paper, Net point, Advertisement and high accurate silk printing duotone.

BW-20水油两用重氮感光胶适用于PCB、广告标牌、陶瓷转印纸、网点、广告及高精密丝印网版。

Earthworm had no effect on soil microbial biomass carbon and nitrogen in the three tropical forests.

5蚯蚓对三林地土壤微生物生物量碳、氮库的大小没有显著的影响。

The key point is that the Gulf of Eilat is an oligotrophic sea, a sea that does not have nitrogen at all,Loya explained.

洛亚解释道："关键是埃拉特海湾是一片营养贫乏、完全不含氮的海域。"

Elastic collision and inelastic collision are considered in oxygen molecule, nitrogen molecule by electron impart. The mail simulation results were as follow:(1)The variations of drift velocity and the average energy of electron with the E/N in O2 and N2 are obtained. The number of electrons for excitation, ionization, dissociation and dissociative ionization collision with the E/N and the energy of electron are analyzed emphatically.

考虑了各种弹性和非弹性碰撞过程，在纯氧气、纯氮气中，给出了不同简化场E／N条件下的电子漂移速度和平均电子能量的变化；着重分析了激发、电离、分解及分解电离碰撞的粒子数随E／N、电子能量的变化，同时计算了激发发射光谱的波长。

Nitrogen spring pressure as long as you master the use of pressure gauges, long-term use of elastic constant, life expectancy five million times.

氮气弹簧只要用压力表掌握压力即可，长期使用弹力不变，寿命500万次。

At the same time, electron cloud density of the nitrogen atom may be taken as the key factor to be correlation with the biodegradation property.

同时还提出了用捕收剂分子中N原子上的电子云密度可作为衡量捕收剂生物降解性的重要参数。

The strongest attraction between two dipoles is when one or both of them involves a bond between hydrogen and a strongly electronegative atom, like oxygen, fluorine, or nitrogen.

氢键：氢键是极性很强的X－H键上的氢原子与另外一个键上电负性很大的原子上的孤对电子相互吸引而形成的一种键。

Bond'.'' consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent ''.

一种化学键：由两个负电原子及其间的氢原子组成，其中一边是共价键，另一边是离子键。

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。