沟的

The construction of common—use tunnel and common—use cable tunnel could protect the road,improve traffic conditions and urban landscape,and promote the maintenance and efficient use of public pipeline.

共同沟和电线共同沟的建设保护了道路，改善了交通、环境和城市景观，促进了公共事业管道的维护和高效利用。

Distal to the buccal frenum is the buccal sulcus , the position of the buccal flange of the denture.

颊沟位于唇沟的远中，是颊侧翼缘的伸展空间。

This paper introduces the concept of automated intelligent tire design as basis, and then systemically presents the general framework of CAD 3-D digital tire model design platform. Its modules include the demand representation, demand preanalysis, product list generation, product list modeling, testing, tires knowledge-base and tire parts-base. The realizing process and key techniques of the product list modeling module are described, including calculation principle of groove section and groove modeling scheme ,and so on. This paper also introduces an improved algorithm of calculating groove centerline. Finally CATIA platform and VBA toolkit-based tire design system is established under detailed demand representation type.

在提出自动化智能轮胎设计概念基础上，系统地阐述了计算机辅助设计三维轮胎数字化模型开发设计平台的整体架构，包括需求表示、需求分析预处理、产品清单生成、产品清单造型、产品检验、轮胎知识库和轮胎零件库等模块；叙述了数字轮胎设计造型模块的实现过程和关键技术，包括花纹沟截面计算原理和各种花纹沟的造型方案等，同时，还提出了一种改进的计算花纹沟中心线的算法；最后基于CATIA三维造型平台和自动化语言VBA二次开发工具实现了在详细需求表示类型下的轮胎设计系统。

The effect of incision for crop stubble and ruderal was improved significantly.

试验结果表明，带圆盘刀式深松机性能较好，相比立柱式深松机和带松土铲深松机，牵引阻力、油耗及松土沟的沟宽都有所降低；对作物残茬和杂草切割效果明显。

Objective: To identify the morphous feature of calcarine sulcus on sagittal MRI planes and to provide reference for identifying CS on transverse MRI planes.

目的：明确距状沟在矢状断层MRI的形态规律，为横断层距状沟的识别提供参照。

MR findings in addition to the primary ascular insult may include prominence of the cortical sulci and perimesencephalic cistern but some patients demonstrate absence of such generalized sulcal prominence.

除了原发的血管病变以外，MRI所见包括脑沟和中脑池的增大，但是一些病人没有脑池或者脑沟的扩大。

Density of gully in this area is so high that it can reach 20km/km2; the erosive intensity varies with the different gully developmental stage; at the most active and densely gullied area, it has the most erosive intensity.

研究表明，包括切沟在内的黄土丘陵区的沟谷密度值可高达20 km/km~2以上；黄土冲沟的发育阶段不同，其侵蚀强度也相应变化；切沟发育最活跃和最密集的地段，其侵蚀强度也最大。

Flume has two kinds of outlets: The parallel water outlets of induction type lie on both sides of flume; The holding type faucets with metal hose lie in the middle of two flumes, that can be suitable for operating under various environments.

峡沟有两种出路：就职类型的平行的出口躺在峡沟的两侧上；容纳的有金属软管的类型水龙头躺在两个峡沟的中间，那可能适于在各种各样的环境下操作。

Diversity of soil surface, stone gully and stone pit is 1.199, 1.592 and 1.962; evenness index of soil surface, stone gully and stone pit is 0.616, 0.989 and 1.095; dominance of soil surface, stone gully and stone pit is 0.545, 0.353 and 0.245 in soil macrofauna community structure.

土面生境土壤动物的多样性指数为1.199，石沟的为1.592，石槽的为1.962；均匀性指数为0.616，石沟的为0.989，石槽的为1.095；土面生境土壤动物的优势度为0.545，石沟的为0.353，石槽的为0.245。

Diversity of soil surface, stone gully and stone pit is 1.199, 1.592 and 1.962; evenness index of soil surface, stone gully and stone pit is 0.616, 0.989 and 1.095; dominance of soil surface, stone gully and stone pit is 0.545, 0.353 and 0.245 in soil macrofauna community structure.

土面生境土壤动物的多样性指数为1.199，石沟的为1.592，石槽的为1.962；土面生境土壤动物的均匀性指数为0.616，石沟的为0.989，石槽的为1.095；土面生境土壤动物的优势度为0.545，石沟的为0.353，石槽为0.245。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。