positive arc

This paper determined the hemolytic rates of the two kinds of carbon arc lamp ( CAL) dusts, at the same time, taked quartz dust as a positive control.

对两种碳弧灯粉尘的溶血率进行测定，并以石英粉尘为阳性对照。

The positive spiral surface and cylindrical spiral arc the most important curved surface and curve in kinematics and geometry, which can be expressed with simple equations and related to other curved surfaces and curves.

正螺面和圆柱螺线是几何学及运动学中最重要的曲面和曲线，可以用简明的公式表示，并和其它曲面和曲线有一定关系。

The NEBs are sodium-rich but potassium-poor, and differ from the vast majority of normal arc basalts in their higher Nb/ La ratios and minor negative to positive anomalies in Ba, Nb and Ti.

富Nb玄武质岩富钠贫钾，具有微弱负-正Ba、Nb和Ti异常以及高的Nb/La比值，不同于大多数正常岛弧玄武岩。

Results OBR positive cells distributed as clump in hypothalamus ME, ARC and VMN, having obscure boundary.

结果在下丘脑的ME、ARC和VMN，观察到OBR阳性细胞聚集成团，细胞边界不清楚。