acicular

acicular crystals.

状结晶体

bractlet apex subacute, without an acicular awn.

稍尖的小苞片顶，没有一状的芒。

The results showed that the properties of PA66 were improved and the cost of material was decreased with the addition of the superfine acicular datolite short-fiber.

实验表明,超细状灰石短纤维的加入不仅使PA66的各种性能得到改善,而且原料成本有所下降。

Utricles convex abaxially, plane or slightly concave adaxially; rostra 1/8-1/5 length of kernel; seed adherent to pericarp; leaves and bracts acute but not acicular at apex.

胞凸背面，正面的平面或者稍凹；喙1/8-1/5段珠心；种子附着于；叶和苞片锐尖但不是状的在先端。

Utricles convex on both sides; rostra nearly equal to length of kernel; seed free from pericarp; leaves and bracts acicular to spinulose at apex.

胞凸的两面；喙差不多等于珠心的长度；种子离生的；具微刺的在先端状的叶和苞片。

Crystal habit: prismatic crystals elongated on c, often flattened on {100} with deep vertical striations, also can be acicular or in cleavable masses.

晶体结构特征：单斜晶系，柱状晶体，扁平柱状晶体，常有熔蚀现象，并有明显的三角形表面印痕。

The microstructure of the sample glaze layer under polarizing microscope and reflecting microscope has showed acicular hausmannite crystals on the glaze layer sur...

通过偏光显微镜和反光显微镜观察试样釉层的显微结构,发现虹彩釉在成釉过程中釉层表面析出了状的黑锰矿晶体。