双向运输

这条双向运输隧道于12月开始商业运输服务。

The two-way tunnel opens for commercial service in December .

双向运输筛分烘干机

A sieving-drying machine of bidirectional transport

伐桩上的伤流液主要来自鞭系，呈双向运输，以正向运输为主。

Most of bleeding sap come from rhizome system with two ways of transportation dominated by positive one .

以原煤为实验对象，对双向运输筛分机的性能进行了实验研究。

This article carries out an experimental study on the screening performance of dual-directional transport screens on the basis of raw coal as the targeted screening materials .

依据作用于滚筒上力的平衡方程式，给出了双向运输带式输送机启动加速度和制动减速度的计算公式；

This paper offers the calculation formula of the startup acceleration and the deceleration velocity about the bi-directional belt conveyer according to the balance equation of force which acts on the rollers ;

分析了筛分面积、物料水份对筛分效果的影响规律；给出了双向运输筛分机的技术参数和筛板数量的结构的建议。

Analyzing the pattern of influence of screening areas and moisture in the materials to be screened , the article also proposes suggestions on the technical parameters and the structure of screening panels of the dual-directional transport screens .

尽管我国铁路运力相当紧张，但成品油的运输仍主要靠铁路，这样不但损耗大、成本高、而且占用双向运输能力。

Despite of the fact that railway transport is in great demands in China , product oil transportation has been still relying on railway , which not only causes the loss and high cost but also requires two way transport capacities .

卡轨车自动道岔的研制将实现单线轨道的双向同时运输，从而提高运效近一倍。

The manufacture of the automatic track switch will realize the bidirection - transportation with uniline so as to double the efficiency .