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From the extruder materials in the suction into two gears, and full of a space, with the rotation of the tooth in the shell movement, finally two teeth mesh when eduction.

齿轮泵由一个独立的电机驱动,可有效地阻断上游的压力动及流量波动。在齿轮泵出口处的压力动可以控制在1%以内。

In meymechite dike and phogopite-plagioclase peridotite dike, MgO content respectively is 28.86%~ 32.78% and 27.28%~ 34.99%., they belong to the ferrguinous ultrabasic rock .

玻质纯橄岩和金云斜长橄榄岩,它们的MgO含量分别为28.86%~32.78%和27.28%~34.99%,属于铁质超基性岩。

In the leaves of Liriodendroideae, some of the abaxial epidermal cells are papillose and the vascular tissue of the main vein appears to be separated. However, papillose were not found and there are uniseriate, multicellular or unicellular hairs distributed on the epidermis, and the vascular tissue of the main vein appears to be continuous in the leaves of Magnolioideae. Furthermore, in the Magnolioideae, the structure of the leaves of plants in Manglietia are different from that of Magnolia.

结果表明:鹅掌楸亚科和木兰亚科在叶的结构上的主要区别是鹅掌楸亚科两种植物叶的部分下表皮细胞呈乳突状,且整个细胞外壁只形成一个乳突,而在木兰亚科的植物中有单列多细胞或单细胞的表皮毛,未发现乳突;鹅掌楸亚科植物的叶主维管组织环分隔呈束状,且其外包被的纤维也排列成束状,而木兰亚科的80种1亚种植物中,叶主维管组织连成轮状,其外面也由一圈连续的纤维环所包围。

There were portal collateral vessels around the main portal vein in 8 patients and among them, there was 1 patient with the varix of gallbladder wall, 2 with gastroepiploic varix, 1 with varix on the bile duct wall, 1 with open of the retroperitoneal-paravertebral vein and the splenorenal vein, and 1 with open of the retroperitoneal-paravertebral vein.

结果 在门闭塞后,引起相应血管的纡曲扩张及侧支血管的形成,其中有门周围形成门-门侧支循环,胆囊壁静的曲张,胃网膜静的增粗纡曲,胆管壁静的纡曲扩张,腹膜后椎体旁侧支血管的开放,脾-肾静短路的开放,胃底食管静的曲张。

Petiole 0.5-6.5 cm; leaf blade elliptic to ovate or broadly lanceolate, sometimes falcate, 5-20 X 2-8 cm, adaxially glabrous to sparsely pubescent, abaxially glabrous, base usually oblique, cuneate to narrowly cuneate, margin serrate to entire, rarely undulate or crenate, apex acuminate to acute, vermiform sclereids surrounding vascular bundles; lateral veins 4-14 on each side of midrib.

叶柄0.5-6.5厘米;有时,宽披针形的叶片椭圆形到卵形或,5-20 X 2-8厘米,正面无毛到疏生短柔毛,背面无毛,基础通常斜,侧4-14在中每边各。

One of the key tasks of ecopolis development is to enhance urban ecosystem service, especially the service of lung (urban green, forests and agriculture land), kidney, skin, exit, and artery (channels, roads and metabolism networks) so as to realize a state of purification, greening, vitalization and beautification. On the other hand, the goal of ecopolis is not only the "green" of natural ecosystem, but also the "red" of human ecosystem. The "eco" in ecopolis is neither a return to primitive nature or only environment protection, nor a conquer over nature, but a integration of green rhythm (blue sky, green field, fertile land, green water) and red network (industry, transportation, city and town, culture vein), a tradeoff between environment and economy and a harmony among heaven, earth and human.

生态城市建设的核心是要强化城市的肺、肾、皮、口和这些生态基础设施的服务功能,实现城市的净化、绿化、活化和美化;另一方面,生态城市不只要有自然生态的绿韵(蓝天、绿野、沃土、碧水),还要有人文生态的红(产业、交通、城镇、文)及其相互的融和,而不只是保护城市环境或生物。

The peak values of pressure fluctuation have not high frequency in the volute.

首次分析了非设计工况下蜗壳不同截面处压力动分布,随着流量的增大螺旋段的动幅度减小。

It has the metamorphic rock sight—"the Inartificial Gallery" which is black and white, devious and whirlabout and likes the reversal cloud-mist and rising sun, the granite vein injecting along the bedding of gneiss crossing the river-gorge—"the White Dragon Crossing River", nine veins apposing on the rock wall—"the Nine-dragon Wall","the Inartificial Wall " formed by the paragenesis of the level joint and the vertical joint, and the small and exquisite undercutting cave which is the wonder of the new tectonic movement.

有黑白相间、曲折盘旋,如云雾翻卷,似霞蔚蒸腾的变质岩景观――"天然画廊",有沿片麻岩层理贯入的花岗岩,横跨河谷的"白龙过江",有九条岩并列在岩壁之上的"九龙壁",有水平节理与垂直节理巧妙共生而形成的"天然城墙",有新构造运动遗迹――小巧玲珑的淘蚀洞穴。

This article analysised the grade and complexity of wolframite rank alternate devive rupture controled mineral in yaogangxian Tungsten mine.

文章认真分析了瑶岗仙黑钨矿阶状交替派生断裂控矿的等级性和复杂性,阐述了阶状交替成矿模式的力学作用,为旁找、矿旁找矿和深部及周边外围找矿提供了理论依据。

Piaotang tungsten deposit is one of the most important quartz-vein type wolframite deposits in Southern Jiangxi Province where is the most important tungsten producing place in China, The wolframite-bearing quartz veins have the characters of multistage mineralization.

赣南是我国最重要的钨矿产地,漂塘钨矿是赣南的一个重要的大型石英型黑钨矿床,含矿石英具有多阶段矿化的特征。

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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。

Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

第三章汉藏语&的&字结构的类型划分。