二歧

Cincinni dichotomously branched from base; 1 branch with 1.5--2 cm long peduncle and 1--4 long-exserted male flowers; other branch with much shorter peduncle and 3--5 bisexual flowers included in involucral bracts; pedicels thick and curved, ca. 3 mm, to 5 mm in fruit.

蝎尾状聚伞花序二歧自基部；1分枝具1.5-2厘米长花序梗和1-4长外露的雄花；其他分枝具非常短花序梗和3-5两性花在总苞片内藏；花梗厚和被弄弯，约3毫米，在果期对5毫米。

Flowering stems dichotomously branched; pedicels of fallen flowers persistent, exserted from spathes, stiff; outer perianth segments not crested.

花茎二歧的分枝；持久的脱落花的花梗，从佛焰苞外露，硬；外部花被片不具脊。

Inflorescences axillary, small, pedunculate, densely capitate clusters of unisexual flowers; solitary glomerules or pairs of dichotomously branched cymes; bracts small.

花序腋生，小，有花序梗，密集头状簇生的单性花；单生团伞花序或对二歧分枝聚伞花序；苞片小。

Cymes solitary or dichotomously branched, ebracteate or lower pedicels bracteate, rarely all bracteate (flowers extra-axillary).

或者二歧分开的聚伞花序单生，无苞片或者下部花梗具苞片，很少全部具苞片。

When Gluma is applied in vivo, two reactions occur: first, GA reacts with part of the serum albumin in dentinal fluid, which induces a precipitation of serum albumin; and, second, the reaction of GA with serum albumin forms dihydropyridinium, whose disproportionation gives rise to free radicals, and the free radicals induce the polymerization of HEMA.

首次提出Gluma的脱敏机理为：当Gluma涂在过敏的牙本质上时，首先戊二醛交联牙本质液中的血清蛋白并产生沉淀；同时戊二醛与血清蛋白的反应产生二氢吡啶盐，它发生歧化反应，歧化过程中会有自由基产生，从而引发HEMA 聚合，生成另外一部分沉淀，这两部分沉淀共同堵住牙本质小管，起到了脱敏作用。

A statistics in world range indicates that the Sr/Eu ratios in the peraluminous granites show similar variation trend to those in pegmatitic apatites. This paper suggests that the high Sr/Eu ratio (＞300) in apatites or peraluminous granites is due to the strong partition of Eu〓 into the aqueous fluid, and this ratio can be used as an excellent geochemical indicator of fluid exsolution from magmatic melts.

对世界范围内的过铝质花岗岩统计表明，过铝质岩浆岩的全岩样品中的Sr/Eu也呈现二歧变化，由此本文提出Sr/Eu比值是指示过铝质岩浆体系中岩浆流体相出溶的有效地球化学参数，大于300的Sr/Eu比值是Eu〓强烈分配进入流体相的地球化学标志。

Inflorescences in axillary pairs or solitary, cymes, panicles or spikes, unisexual; male inflorescence often long, flowers clustered on rachis of spikes, dichotomous cymes, or panicles; female glomerules lax or dense on rachis of scorpioid cymes, spikes, or panicles.

花序在腋生成对或单生，聚伞花序，圆锥花序或穗状花序，单性（植株雌雄同株或异株；雄花序通常长，在穗状花序，二歧的聚伞花序，或圆锥花序的轴上的花簇生；雌性团伞花序在蝎尾状聚伞花序、穗状花序或圆锥花序的轴上疏松或紧密。

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

Branches dichotomous or verticillate; stem internodes terete.

分枝二歧的或轮生；茎节间圆柱状。

Type Ⅲ is composed of the branch with three times dichotomies.

TypeⅢ的枝二歧分叉三次。

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