硼

The existing form of boron on the rubbing surfaces is sodium metaborate which can be dissolved in water. The hydration water of so- dium metaborate can reduce the aiitiwear function on Four-ball Machine but enhance its antiwear ability on Timken Tester. The study also revealed that sulfonate dispersant Can reduce the antiwear function of sodium metaborate while succinimide dispersant enhance its antiwear ability.

结果表明，含偏硼酸钠的白油能在摩擦表面形成含偏硼酸钠的表面膜而具有较好的抗磨性，硼在摩擦表面膜中以偏硼酸钠的形式存在，钠和钙的石油磺酸盐型分散剂会降低偏硼酸钠的抗磨性，而丁二酰亚胺类分散剂则能提高其抗磨性。

The presence of boron was primarily ascertained by the color of crystal, X-ray diffraction and Raman spectrum.

通过晶体的颜色、X射线衍射以及Raman光谱可以初步断定合成出的金刚石晶体中确实含有硼元素。

Under field conditions, the effects of boron nutrition on potato growth and development, yeild and quality were studied.

在田间条件下，通过不同浓度硼酸浸种，研究硼对马铃薯生长发育、产量及品质的影响。

Acridone 1 reacted with benzyl chlorides 2 in NaH/DMF/KI to give 10-benzyl-9-acridones 3 in high yields. Subsequent reduction of 3 with NaBH4 gave 10-benzy1-9,10-dihydroacridine derivatives 4 with yields of 88%～96%.

吖啶酮1与氯化苄及其衍生物2在氢化钠/N，N-二甲基甲酰胺/碘化钾中反应高产率生成10-苄基吖啶酮类化合物3； 3经硼氢化钠氢化还原生成10-苄基-9，10-二氢吖啶类化合物4，产率88%～96%。

The concentration of alginic sodium diester in the range of 2~8 mg/L obeys Beer′s law and the linear equation is A=-0.0639C_ASD+1.507, r=0.9993. The detection limit is 0.065 mg/L.

张淑敏等[3]报道了以四苯硼钠为滴定剂的示波极谱滴定法间接测定ASD的方法，该法精密度等较好，但操作烦琐。

At present, most soda water exploited in the world is from hot spring, but the alkalescent soda water of our company from cold spring is quite rare, for it contains boron and another 17 beneficial microelements.

目前，世界发现或开发的天然苏打水，多数属于温泉，而本公司开发的弱碱性天然苏打水是冷泉，而且含硼和人体必需、有益微量元素17种，实属罕见。

A highly regio- and stereoselective diboration of allenes was achieved with a catalytic amount of phosphine-free Pd complex and alkenyl or aryl iodide.

双硼试剂加成到1，2双烯的反应，传统上利用Pt金属错合物为催化剂，根据文献的报导，单独只使用Pd金属错合物是无法进行此反应的。

In all cases, only the biboronic products with one boryl group adding to the middle carbon and the other to the nonsubstituted terminal carbon of the allene moiety were observed.

两个硼酯基都接於丙二烯基没有取代的末端双键上。立体选择性很高，主要的产物都是Z form的形式。

Sucrose and H3BO3 were essential for pollen germination of Alnus formosana.

蔗糖和硼是台湾桤木花粉萌发的必要条件

In route 1, geranylamine was synthesized from geraniol via Mitsunobu reaction and aminolysis. Adamantan-2-amjne was synthesized from adamantan-2-one via reductive imination and catalytic hydrogenation.

第一条路线香叶醇经Mitsunobu反应、胺解反应得到香叶胺；2-金刚烷酮经亚胺化、硼氢化钠还原、催化氢化脱节基得2-金刚烷胺。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。