具小羽片的

Leaves with ultimate segments 0.3–1 mm broad, margin glabrous, lobes lacerate, acute; primary umbel not overtopped by laterals; bracteoles oblanceolate, 3-lobed to pinnate/pinnatifid at apex, apex acute; petals white to pink; fruit 6–10 mm.

叶具末回裂片0.3-1毫米宽，边缘无毛，撕裂状，锐尖的裂片；不被laterals 超过的初级的伞形花序；小苞片倒披针形，对羽状/羽状半裂的在先端3浅裂，先端锐尖；花瓣白色到粉红色果6-10毫米 20 Pleurospermum benthamii 宝兴棱子芹

Leaves crowded near apex of the trunk, spirally arranged; stipes dark brown, with sharp spines; lamina large, oblong, tripinnate; pinnae 17-20 pairs, alternate, longest one to 60 cm long, the basal one reduced; rachis short-spiny; pinnules 18-20 pairs, sessile or nearly so, lanceolate, to 10 cm long and 2.5 cm wide, divided almost to the costa; segments more or less falcate, toothed.

叶螺旋状排列，聚生於茎端；叶柄棕色，具锐刺；叶片大，长矩圆形，三回羽状深裂；羽片17-20对，互生，最大的长达60厘米，基部一对缩短，羽轴有短刺；小羽片18-20对，无柄或近於无柄，披针形，长达10厘米，宽2.5厘米，深裂几达中脉；末回裂片多少镰状，有齿。

Basal petioles 10–20 cm; blade broad-triangular, 10–15 cm, ternate-2-pinnate; pinnae petiolulate; petiolules 3–6 cm; ultimate segments subovate, 3–11 × 2–6 cm, undivided or 2–3-lobed, both surfaces slightly roughened, sharply serrate or doubly serrate.

基部的叶柄10-20厘米；叶片宽三角形，10-15厘米，三出2回羽状；羽片具小叶柄；小叶柄3-6厘米；末回裂片近卵形， 3-11 * 2-6 厘米，不裂或2-3浅裂，两面稍变得粗糙，锐的有锯齿或重锯齿。

Female flowers with an entire bract adnate to ovary, free at apex; bracteoles 2, adnate to ovary, free at apex; sepals 4, adnate to ovary, free at apex; style elongate with recurved branches; stigmas carinal, 2-lobed, plumose.

雌花具一全缘的苞片贴生于子房，离生在先端；小苞片2，贴生于子房，免费在先端；萼片4，贴生于子房，离生在先端；花柱拉长具下弯的分枝；柱头carinal，2裂，羽状。

In contrast, P. obliquum has lamina with basal pinnae contracted, scales of petiole brown adaxially, scales of rachis up to 2.3×0.5 mm, pinnae green, chartaceous, matt adaxially, and serrulate on margin, and microscales 0.2-0.5×0.1-0.2 mm.

obliquum相似，但吞天井耳蕨的叶片基部最宽，向基部不缩短，叶柄鳞片近轴面深棕色，叶轴鳞片达3.6×0.8mm，羽片深绿色，近革质，向轴面有光泽，边缘具略波状微齿或近全缘，小鳞片达2×0.5mm；而斜羽耳蕨的叶片的基部缩短，叶柄鳞片向轴面棕色，叶轴鳞片达2.3×0.5mm，羽片绿色，草质，向轴面无光泽，边缘有锯齿，小鳞片达0.5-0.8×0.2-0.3mm。

Stem leaves petiolate, petioles ca. 10 cm; sheaths broadly ovate, 2.5–4 cm, purple-red adaxially, densely white-setose abaxially; blades triangular-oblong, 10–15 × 5–7 cm, 3-pinnate; pinnae 5–7 pairs, only basal pinnae short-petiolulate; ultimate segments obovate or oblanceolate, 3–5 × 2–3 mm, setose along nerves abaxially, entire or 2–3 toothed, cuspidate at apex.

茎生叶具叶柄，叶柄约厘米；鞘宽卵形，正面2.5 -4厘米，紫红色，密被白色具刚毛；叶片三角形的长圆形， 10-15 * 5-7 厘米，3回羽状；羽片5-7 对，只是基本的羽片短的小叶柄；末回裂片倒卵形或倒披针形， 3-5 * 2-3 毫米，具刚毛沿着叶脉背面，全缘或齿状，骤尖在先端。

Leaf blade 2–3-pinnate; bracteoles entire fruit hispid.

叶片2-3回羽状；小苞片全缘水果具糙硬毛的。

Myriophyllum aquaticum Verdcourt is a commonly cultivated, and nearly naturalized, species in Taiwan, characterized as follows: plants dioecious (only female plants known in China); aerial leaves glaucous or light bluish green; all leaves whorled, never entire, pinnately divided with linear segments; bracteoles subulate with 1(or 2) lateral lobes.

Myriophyllum aquaticumVerdcourt一通常栽培的，植株雌雄异株的(只女性的植株被在中国知道)；气生叶苍白的或浅蓝绿色；全部叶轮生，从未全缘的，成羽状全裂具线形裂片；小苞片钻形，具(1或)2侧叶裂片。

Basal leaves numerous, petiolate; blade long-ovate to oblong, 3-pinnatisect; pinnae shortly petiolulate; ultimate segments linear, entire, margins narrowly reflexed, apex acute, both surfaces glabrous.

基生叶多数，具叶柄；叶片长卵形到长圆形，3回羽状全裂；羽片具短的小叶柄；末回裂片线形，全缘，边缘狭，先端锐尖，两面无毛。

Umbels 3–15(–20) cm across; bracts 1–3, 1–3 cm, white-setose abaxially, apex acute or pinnate; rays 6–17, 8–10 cm; bracteoles 8–10, broadly cuneate-obovate, 6–15 mm, mottled purple-green, pubescent along nerves, abruptly acuminate to a short point; umbellules many-flowered.

伞形花序3-15(-20)厘米直径；苞片1-3，1-3厘米，白色具刚毛，先端锐尖或者羽状；伞辐6-17，8-10厘米；小苞片8-10，宽楔形倒卵形，6-15毫米，具斑点紫色绿色，沿着叶脉短柔毛，突然渐尖到短尖；小伞形花序多花的。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐