Why It's Unique: With a 76-foot diameter, Yerba BuenaIsland Tunnel is the world's widest single-bore tunnel, an impressivefeat considering it opened in November of 1936.
独特之处：直径达76英尺的耶尔瓦布埃纳岛隧道是世界上最宽的单孔隧道，1936年11月，这项令人印象深刻的工程落成开通。
The Bore is the diameter of the cylinder. The stroke is the distance the piston travels from BDC (Bottom dead center) to TDC (top dead center). The Bore is always mentioned first.
内径指的是气缸的直径；行程是活塞从下止点运行到上止点的距离。表述时，内径总是写在前面。
Mean bore diameter: arithmetical mean of the largest and smallest single bore diameters in one plane.
平均内径：同一平面上最大和最小内径的算术平均值。
Shanghai ball valve manufacturers to meet the different needs of customers, with reduced diameter and two series of full bore ball valve.
上海球阀生产厂家为满足客户的不同需求，设有缩径全通径及两大系列球阀。
Free operation is realized, thus effectively solving a problem of the bore that the diameter is big and a difficulty of a large workpiece that the work range is large.
实现了操作自由，有效解决大直径的钻孔问题并解决了大型工件加工范围大的困难。
A method of machining to produce the big bore diameter PTFE sifter of the parts for high speed diazo printer was reported, by using polymer PTFE material.
报道了采用新型高分子材料聚四氟乙烯车削板为原料，机械加工生产高速晒图机的重要部件——大孔径聚四氟乙烯筛板的方法。
Thus by a simple machining operation on the face of the moulding the bore diameter is not disturbed.
这样在塑件的平面上作简单的修饰不会影响到塑件的使用。
The diameter of the cylinder is called the engine bore.
气缸直径被称为发动机缸径。
The present invention has the advantage that the measurement data of the diameter value of the inner bore with the bore gauge in specific depth is accurate due to high locating accuracy.
因为定位准确度高，用内径表测量内孔定深处直径值数据准确。
The diameter of the cylinder is called the engine bore.
圆筒的直径称引擎打扰。
ChinaAbstract:ObjectiveTo observe the effect of the different bore diameter membranes on the parameters of technologies of Lianhua Qingwen Granules and to optimize the process of membrane filtration.
目的在无机陶瓷膜精制连花清瘟颗粒过程中，考察不同孔径的膜对该体系的适用性，并进行膜过程优化设计。
Sometimes, the work over operation must be done to large diameter cased bore hole for the need of production of the well.
因生产需要，有时要对大套管井筒进行修井。
Sometimes, the work over operation must be done to large diameter cased bore hole for the need of production of the well.
因生产需要，有时要对大套管井筒进行修井。
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