中脉

"Costa:a rib or a riblike part, such as the midrib of a leaf or a thickened anterior vein or margin of an insect 's wing."

肋骨，叶脉：肋骨或肋骨状部分，例如叶子的中脉或昆虫翼的较厚的前部线或边。

A rib or a riblike part,such as the midrib of a leaf or a thicken ed anterior vein or margin of an insect's wing.

肋骨，叶脉肋骨或肋骨状部分，例如叶子的中脉或昆虫翼的较厚的前部线或边

A rib or a riblike part, such as the midrib of a leaf or a thickened ''.'anterior'.

肋骨，叶脉肋骨或肋骨状部分，例如叶子的中脉或昆虫''。

Base foliation sword form, long 20-50 centimeter, wide 2-4 centimeter, erect or bend a bit, without apparent midrib, virescent or celadon, often provide whitening, base ministry scabbard shape, constant belt is rufous, tip gradually pointed.

基生叶剑形，长20-50厘米，宽2-4厘米，竖立或稍弯曲，无明显的中脉，淡绿色或灰绿色，常具白粉，基部鞘状，常带红褐色，先端渐尖。

Basal leaves rosulate; petiole 1-10(-15) cm; leaf blade broadly oblanceolate, oblong or lanceolate in outline, pinnatisect, pinnatifid, or runcinate,(2-)5-20(-35)×(1-)2-8(-10) cm; lateral lobes (3 or)4-6(-8) on each side of midvein, smaller than terminal one, oblong or lanceolate, entire, dentate, or lobed. Uppermost cauline leaves with narrowly linear to filiform lobes.

基生叶莲座状；叶柄1-10(-15)厘米；宽倒披针形的叶片，长圆形或披针形轮廓，羽状全裂，羽状半裂，倒向羽裂的或，( 2-)5-20(-35)*(1-)2-8(-10)厘米；侧面裂片(3或者)4-6(-8)在中脉两边各，最上部的茎生叶具狭线形到丝状裂片。

Bracteoles 2, broadly ovate, ca. 1.3 cm, abaxially midvein strigose and sericeous, adaxially glabrous, margin ciliate.

小苞片2，宽卵形，大约1.3厘米，背面中脉具糙伏毛和被绢毛，正面无毛，边缘具缘毛。

Leaves glossy deep green adaxially, narrowly linear-lanceolate, straight or slightly falcate, 0.8-6.5(-7) cm × 1.5-5 mm, midvein green abaxially, 0.3-1.2 mm wide, flat with median longitudinal keel throughout, stomatal bands present on both surfaces, bands on adaxial surface 0.5-1.5 mm wide, of 7-28 rows of stomatal, white powdery or not, bands on abaxial surface 1.2-2.8 mm apart, 0.3-0.8(-1) mm from leaf margin, not or rarely white powdery, base decurrent, margin denticulate, sometimes indistinctly so, especially on old trees, with 18-55(-90) teeth per side, apex usually symmetric and spinescent, spine 0.3-2 mm. Pollen cone fascicles terminal, 1-3(-5) together, broadly obovoid, each of 8-20 cones, occasionally a few also around base of seed cone; peduncle 2-4 mm; cones narrowly oblong-conical.

正面的叶有光泽的深绿色，披针形狭线形，直的或稍镰刀形， 0.8-6.5(-7)厘米×1.5-5毫米，中脉绿色背面，全部的0.3-1.2毫米宽，平的具中间的纵向的脊，气孔带宿存在两面，在正面0.5-1.5毫米宽上条纹状，7-28排stomatal的，与否白色粉状，相隔1.2-2.8毫米的条纹状的在背面，从叶缘的0.3-0.8(-1)毫米，白色敷粉的或很少的不，基部下延，边缘具小齿，有时不清楚如此，特别是在古树上，具18-55(-90)齿每边，先端通常对称和具刺，刺0.3个-2毫米雄球花束簇终端，花序梗2-4毫米；圆锥形孢子叶球狭长圆形。

Leaves subsessile or lower ones with petioles 1-2 mm; cauline blade ovate to lanceolate to lanceolate-elliptic, spatulate near base, 1-2.5 × 0.5-1 cm, subglabrous with faintly strigillose margin and midvein, base cuneate to broadly so, margin denticulate with 3-9 teeth per side, apex acute to obtuse.

叶近无柄或下部的具叶柄1-2毫米；茎生叶卵形的到披针形到披针形椭圆，匙形的近基部， 1-2.5 * 0.5-1 厘米，近无毛微弱具短糙伏毛的具边缘和中脉，基部楔形到宽如此，边缘具小齿具齿每边3-9，先端锐尖到钝。

Trunk often dichotomously branched toward apex, to 16 m, apex not tomentose; bark gray or white-gray, smooth toward base of trunk; leaflets with midvein sulcate adaxially and margin revolute to slightly recurved; seeds 4.5-6 × 4-4.7 cm

树干通常二歧分枝向先端，令16米，先端的是不；对于树干的基部灰色或白色灰色，平滑的树皮；中脉具槽的小叶具正面和边缘外卷在稍下弯；种子 4.5-6 * 4-4.7 厘米 16 Cycas pectinata 篦齿苏铁

Sepals 6, white, obovate to rhombic-obovate, 2--3 × 1--1.5 cm, abaxially densely velutinous along midvein, adaxially glabrous, margin glabrous, apex acute.

萼片6，白色，到菱形倒卵形， 2-3 * 1-1.5 厘米，背面的密被茸毛沿中脉，正面无毛，边缘无毛，先端锐尖。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。