本文仅就车辆在平面交叉口前的平均等待时间和平均车辆数来评价交叉口的运行效率。
This paper is to evaluate the operational efficiency of intersections only in terms of average waiting time and average number of vehicles that have to wait before the at-grade intersections.
如图，在苏尼翁海岬约2500年前的海神庙上空，月亮咬了太阳一小口。
Above, the moon takes a "bite" out of the sun's disk over the roughly 2, 500-year-old temple of Poseidon in Cape Sounion.
爸爸把碗柜放在马车的座位下面，又在柜子前放了满满一口袋的谷子作为马的食物。
Father put the cupboard under the wagon-seat, and in front of it and he laid a sack of corn for the horses.
爸爸把碗柜放在马车的座位下面，又在柜子前放了满满一口袋的谷子作为马的食物。
Pa put the cupboard under the wagon-seat, and in front of it he laid a sack of corn for the horses.
其腹面口区具二环围口纤毛列及一口前纤毛列；背面具一列背刚毛；腹面纤毛列的数目可发生较大变动。
There are two circumoral ciliarvrows and a preoral ciliary row on the buccal region and a dorsal row of bristles.
灰口铸铁、球墨铸铁的辉光离子氮化质量较难保证，其根本原因在于氮化前工件清洗不当。
It is difficult to warrant the quality of glow-ion nitriding to grey cast iron and ductile cast iron. The basic reason is that the iron can't be washed clearly before nitriding.
所以，焊前直接采用火焰切割坡口的工艺可行。
So before welding, the process flame cutting groove is feasible.
采样口和外壳采用优质航空铝制造，表面闭孔处理，便于使用前的灭菌消毒。
Sampling pedestal and crust adopt quality aviation aluminum, surface close hole processing and is convenient to sterilize and disinfect before using.
祖父走到祖母的棺木前，颤抖地吸了一口气，然后开始放声歌唱。
Grandpa stepped up to my grandmother's casket and, taking a shaky breath, he began to sing to her.
两个礼拜前，当我在楼下吃早餐，用汤匙舀着最后一口米粥时，听到楼上的洗手间里传来一声响亮的撞击声。
Two weeks ago while I was downstairs having my breakfast spooning the last of my rice porridge I heard a loud crash coming from the upstairs bathroom.
结果：在观察到二尖瓣口左房侧负向血流的同时，在其左房的相对面可测到前向性血流。
RESULTS: the reverse flow were detected at the mitral valve orifice of left atrium, at the opposite of which in left atrium the front flow were also detected.
方法：建立种植全口固定义齿和种植全口覆盖义齿的三维有限元模型，然后进行侧方咬合平衡与不平衡、前伸咬合平衡与不平衡模拟加载分析。
METHODS: A 3-D finite element model of mandibular complete dentures supported by implants was established to analyze the stress status with protrusive or lateral occlusions.
当人接触到带有另一人的呼吸道飞沫的表面如办公桌面，然后又在洗手前触摸了自己的眼睛，口或鼻，病菌就这样传播。
Germs can be spread when a person touches respiratory droplets from another person on a surface like a desk, for example, and then touches their own eyes, mouth or nose before washing their hands.
2006年11月13日—东亚经济在2006年前三个季度的快速增长，大约帮助2500万人口摆脱了严重的贫困。
November 13, 2006-strong economic growth in East Asia helped lift some 25 million people out of severe poverty in the first three quarters of 2006.
约公元前2000年，从现在的荷兰和莱茵兰地区来了宽口陶器人。
At about 2000 BC the Beaker Folk arrived from the areas now known as Holland and Rhineland.
纤毛虫最重要的3个类群为下毛目、肾形目和前口目，其中又以下毛目种类最丰富。
The 3 most important groups of soil ciliates were Hypotrichida, Colpodida and Prostomatida, among which Hypotrichida had the greatest richness of species.
刘9井位于刘庄油气田断鼻构造圈闭高部位，是三十年前钻探的一口裸眼工程报废井。
Liu9 well drilled and explored before 30 years is one engineering abandoned well with open hole which is situated at high part of fault nose structure trap in Liuzhuang oil and gas field.
是管件制作和管道施工焊接前管端坡口加工的关键设备。
It's a key machine for pipe fitting forming and pipe end beveling before welded in pipeline construction.
拥有3亿人口的美国，相比较40年前2亿人口时，空气和水都更清洁干净了。
With a population of 300 million, the United States has cleaner air and water now than 40 years ago, when the population was 200 million.
认为置管前对肠造口相关情况的评估、选择适宜的管路，并根据不同类型管路进行针对性的处置和置管后的管理是治疗成功的关键。
The key points of nursing were assessment of intestinal stoma, selection of proper therapy tube, as well as proper management of indwelling therapy tube.
另一种是利用能够表达交叉口转向限制和交叉口延误的存储结构——扩展的前向关联边结构，直接存储路网。
The other one is to straight store road network with the generalized forward star structure, which can represent turn restrictions and intersection delays.
担任牧师的伯父主持餐前祈祷。然后，餐桌上阿拉伯语不绝于耳。 我的表兄弟们开始蘸着调料吃面包，舀一勺黎巴嫩风味的“tabouleh”色拉，再一小口一小口细细品尝蜜糖果仁酥饼。
My uncle the priest blessed the table and the chatter of Arabic began as cousins dipped their bread scooped up the tabouleh salad and daintily bit the sweet baklava pastry.
20年前当达达布难民营启用的时候，一家五口难民住的范围有大约一栋小房子那么大。
When Dadaab opened two decades ago, a family of five lived on a plot of land that was about the same area as a small house.
他们走过妖怪用魔法笼罩着的森林，穿过荒凉的原野，来到一口古井前。
They walked beyond the sprite's enchanted woods, across desolate plains, until they came to an ancient well.
携带肺吸虫尾蚴的淡水螺类拟钉螺亚科一新种（前鳃亚纲；中腹足目；圆口螺科；拟钉螺亚科）
A new species of the Triculinae of freshwater snails thatharbours cercariae of lung flukes from Fujian, China;
携带肺吸虫尾蚴的淡水螺类拟钉螺亚科一新种（前鳃亚纲；中腹足目；圆口螺科；拟钉螺亚科）
A new species of the Triculinae of freshwater snails thatharbours cercariae of lung flukes from Fujian, China;
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