1.
dual way check valve
双向止回阀（双通单向阀）
2.
Only One-Way Operation can be bound to One-Way Send Port.
只可将单向操作绑定到单向发送端口。
3.
Represents various traps. Trap type can be specified.
表示各种单向阀。可指定单向阀类型。
4.
undirectional n.
[港台] 单向转换器；[大陆] 单向换能器
5.
Algorithm for Finding All One-way Sub-graph of Simple Digraph;
简单有向图所有单向分图的求解算法
6.
Focus on Two-way Network Construction to One-way HFC+EPON+EOC Transfer
关注双向网建设向单向HFC+EPON+EOC的转移
7.
double-row single-direction thrust ball bearing
双排单向推力球轴承
8.
A surge of electrical power in one direction.
脉冲电力的单向涌动
9.
A means of one-way transmission.
单向传输的一种手段。
10.
You click on the menu, and it drops down.
单击菜单，它就向下展开。
11.
director element
导向元件，引向单元
12.
external pressure single type axial expansion joint
外压单式轴向伸缩接头
13.
multinomial forward transfer element
多项式正向传送单元
14.
The latter tenders him the shipping documents.
后者向他交付单据。
15.
directional single-plane jet perforator
单面定向聚能弹射孔器
16.
single-row self-aligning bearing
单列向心球面球轴承
17.
e-direction self-aligning ball thrust bearing
单列径向止推滚珠轴承
18.
single row angular contact ball bearing
单列向心推力球轴承