2) Dashankou dam
大山口大坝
3) large diameter
大口径
1.
FEM modeling and experimental of NC bending process of thin-wall tube with large diameter and small bending radius;
大口径薄壁小弯曲半径数控弯管有限元建模和实验
2.
Numerical Simulation and Experimental Study on the Forming Process of Large Diameter High Grade Steel Pipe Fittings;
大口径高钢级管件成形工艺数值模拟及实验研究
3.
The applied priority of PP large diameter twin wall corrugated pipes was emphasised.
主要介绍了双壁波纹管及其所用材料的种类并对它们进行了分析比较 ,重点介绍了聚丙烯树脂在大口径双壁波纹管上的应用优势。
4) Tricholoma giganteum
大白口蘑
1.
Determination of Mercury in Tricholoma giganteum by Flow Injection-Atomic Absorption Spectrometry;
流动注射—冷原子吸收法测定大白口蘑中的痕量汞
2.
Nutrient Analysis of Tricholoma giganteum and Pleurotus eryngii Cultivated with Cotton Seed Hull Compost;
棉籽壳栽培大白口蘑和杏鲍菇的营养分析和比较
3.
Studies on the Biological Characteristics of Tricholoma giganteum;
大白口蘑生物学特性研究
5) gas pipes
大偏口
6) big caliber
大口径
1.
The big caliber plastic-coated steel tube has a great need recently,however the cost is very high with the existing technology.
大口径涂塑钢管以现有的技术条件其制造成本极高,通过开发使用专用弹性体涂料,实现了常温制造涂塑钢管。
2.
In the text,a few common big caliber heat meters of different principles and constitute of the thermal energy calculates device was introduced,and the applying circumstance in the concentration heating was also provided.
介绍了几种常见的不同原理的大口径热能表及热能计量装置的构成,以及在集中供热管网中的应用情况,对其检定校准方法进行了详细探讨,提出了提高测量准确度的有效方法,以推动大管道热计量技术在热网的成熟应用。
补充资料：大口
大口
Psettodes erumei;indo-pacific arrow-toothed flounder
亚目科属的1种(见图[大口外形]
外形" class=image>)。又名大口,左口、正鼻、赤鼻。体长椭圆形,很侧扁。背鳍始于项背，臀鳍始于胸鳍后方，均不连尾鳍。偶鳍都有分枝鳍条；左右胸鳍相似，侧位，腹鳍鳍基短，喉位，近似对称。尾鳍后端双截形,鳞中等大。两眼兼 有鲆及鲽特征,同位左或右侧；上眼接头背中线。鼻孔每侧2个,位吻侧,两侧对称。口大,前位，斜形，上颌达眼远后方，有辅颌骨。两颌牙发达，犁骨牙一群，腭骨牙每侧一行。鳃盖膜分离且游离。鳃峡略窄，不为深凹刻状。鳃耙短密,尖丛状。假鳃发达。有眼侧头体暗褐色,无眼侧污白色。奇鳍棕褐色;胸鳍黄色有小褐点。幼鱼体长约100毫米时，其眼侧自鳃孔到尾柄常有4条横带状的暗纹
头骨在无眼侧前额骨与额骨间有一伪头中骨。尾舌骨侧面呈长四边形。椎骨后四腹椎有肾脉弓及叉状肾脉棘。有肋骨与后匙骨下鳃盖骨前端丁字形。成鱼体长可达600多毫米。分布于东海南部，西至非洲东岸,东至澳大利亚。李思忠
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