圆锯齿

Leaf blade margin serrate or crenate-serrate; achene without colored ring on both surfaces.

叶片边缘有锯齿或具圆齿有锯齿；没有彩色的环在两面的瘦果。

Leaves ovate to ovate-lanceolate, base rounded to cuneate-attenuate, margin crenate or serrate except at base.

叶卵形到卵状披针形，渐狭的基部圆形到楔形，边缘具圆齿或有锯齿除在基部之外。

Leaves petiolate, with simple or stellate hairs, margin serrate or crenate.

叶具叶柄，具单的或星状毛，边缘有锯齿或具圆齿。

Leaf blade not ovate-cordate, base cuneate or subrounded, margin obtusely serrate or crenate-serrate; fruiting pedicel not longer than 1.2 cm

不卵状心形的叶片，基部楔形或近圆形，边缘钝锯齿或具圆齿有锯齿；果梗不长于1.2厘米 23

Flowers white; leaf margin subentire to inconspicuously and remotely crenate-serrulate or serrulate toward apex; sepals not persistent on fruit.

花白色 对不明显和稀疏具圆齿有细锯齿的或有细锯齿向先端近全缘的叶缘；在果上不宿存的萼片。

Leaf blade (1.5-)3.5-17 cm wide, margin crenate, crenulate, dentate, denticulate, or serrate, often repand, seldom subentire to entire.

叶片(1.5-)3.5宽-17厘米，边缘具圆齿，具细圆齿，具牙齿，具小齿，或有锯齿，残波状的通常，很少近全缘到全缘。

Leaves opposite, subopposite, whorled, spiraled, or alternate, usually petiolate, estipulate; petiole sometimes persistent and thornlike; leaf blade simple, margin entire or subentire, sometimes toothed, glands often present between crenations of proximal margin and at base or on petiole.

叶对生，近对生，轮生，螺旋状排列，或者互生，通常具叶柄，无托叶；叶柄有时宿存并刺状；单叶，边缘全缘或者近全缘，有时具齿，通常在近端部和基部的圆锯齿之间或叶柄上有腺体。

Petiole 8-20 cm, glabrous; leaf blade 5-7-foliolate; leaflets sessile, abaxially green, oblanceolate, 10-25 × 5-12 cm, abaxially glabrous or with sparse whitish hairs, ferruginous tomentose at base and in axils of lateral veins, base cuneate, margin crenate-serrate with teeth crenulate-serrulate, apex acuminate to subcaudate; lateral veins in 18-25 pairs.

叶柄8-20厘米，无毛；叶片5-7具小叶；小叶无柄，背面绿色，倒披针形， 10-25 * 5-12 厘米，背面无毛或者有稀少带白色毛的，被锈色绒毛在基部和在侧脉腋处，基部楔形，边圆齿状锯齿具细圆齿到细锯齿的牙齿，18-25对的侧脉。

Yun-strip method, the circle-shaped bath temperature higher than the crescent-shaped article transport transport of temperature, the temperature was higher than the crescent-shaped article transport serrated Article transported bath temperature, in the 12mm flat bottom welded seal, using serrated transport of , and with the magnitude and the swinging groove on both sides of the pause, effective control of the bath temperature, so that pore size of the melt is essentially consistent with the roots do not form a welding groove tumor and decrease the chances of burn-through, no penetration has The improvement of the peace panels of the single-sided welding butt welding flat-sided shape is no longer difficult.

运条方法，圆圈形运条熔池温度高于月牙形运条温度，月牙形运条温度又高于锯齿形运条的熔池温度，在12mm平焊封底层，采用锯齿形运条，并且用摆动的幅度和在坡口两侧的停顿，有效的控制了熔池温度，使熔孔大小基本一致，坡口根部未形成焊瘤和烧穿的机率有所下降，未焊透有所改善，使乎板对接平焊的单面焊接双面成形不再是难点。

An important method to improve the sawing effectiveness is to optimize the base and sawtooth structure s of diamond saw blades.

金刚石圆锯片是金刚石类工具中消耗量最大的刀具，优化金刚石圆锯片基体及锯齿结构是改善锯切效果的重要途径。

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。