镶齿

This company mainly produces the overall quality hard alloy milling cutter, drill, reamer, center drill, graver, Ling-tooth milling cutter, dovetail milling cutter, ladder drill, PCD insert carbide cutting tools and various non-standard cutting tools such as Product mainly used in molds, models, Auto, aviation, electronics, advertisement production, woodworking furniture and other industries.

本公司主要生产整体硬质质合金铣刀，钻头，铰刀，中心钻，雕刻刀，菱齿铣刀，燕尾铣刀，阶梯钻，PCD刀具及各类镶硬质合金非标刀具等，产品主要应用于模具，模型，汽摩，航空，电子，广告制作，木工家具等行业。

In order to solve the existing problems of drilling gravel and cobble stratum,common tungsten carbide-insert drill bits, composite diamond-tungsten carbide button bits and impregnated diamond-tungsten carbide bar bits were designed and tested successively.

针对卵砾石地层的钻进实践，先后设计与试验了三种类型的钻头；普通八角合金钻头、金刚石-硬质合金复合球齿钻头与孕镶金刚石-针状合金复合式钻头。

Spikelets 6.5–9 mm, florets 3, uppermost reduced, green or violet tinged; rachilla densely pilose; glumes unequal, keel scabrid, margins narrowly hyaline, apex acuminate-aristulate, lower glume lanceolate, 4–5 mm, 1-veined, upper glume elliptic, 5–6.5 mm, 3-veined; callus hairs ca. 0.8 mm; lowest lemma 6.5–7 mm, upper part often violet-colored, keel scabrid, apex 2-toothed; awn 12–16 mm, geniculate or rarely recurved; palea subequal to lemma.

小穗6.5-9毫米，小花3，退化，绿色的或紫罗兰色微染的最上部的；小穗轴密被柔毛；颖片不同的事物，翻转，狭给镶边，先端渐尖具小芒，约的胼胝体毛0.8毫米；低外稃6.5-7毫米，紫色有色，龙骨状粗糙的上半部分通常，先端2齿；芒12-16毫米，膝曲的或很少下弯；内稃近等长于外稃。

Central leaflet elliptic or elliptic-lanceolate, margin 4-10-toothed; calyx saucer-shaped

中部小叶椭圆形或椭圆形披针形，给镶边齿状；花萼茶托状 22

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。