三通的英文：
tee bend
tee branch
tee joint
tee conneetion
tee fitting
wye
Y
yoke

参考例句：

"(three) direct links of mail, air and shipping services, and trade"
三通(与台湾)

" three direct links (mail, air and shipping services and trade) and bilateral exchanges"
直接三通与双向交流

We can encourage Taiwan first to have “three links” with the mainland: link of trade, travel and post
可以鼓励台湾首先和大陆搞“三通”

Deenergize the coil of the 3-way magnet valve and energize alternately by the operation of the engine protecting system.
通过主机安保系统的操作交变地断电和通电三通电磁阀。

tee是什么意思：
n. 开球处，球座
v. 开球

connect with a tee, as of pipes.
三角管用t形物连起来。

Sir, this way to the next tee.
先生，从这一边到下个发球台。

The driving of a golf ball from the tee into the hole in only one stroke.
一杆击中一杆就把高尔夫球从球座击入洞中。

bend是什么意思：
v. （使）弯曲，成角度，拉；弯腰；专心；歪曲，篡改；低（头）；屈从
n. 弯曲处，拐弯，弯道

If we bend a rod, it bends.
如果我们弯曲一个杆，它会弯曲。

The frictional restraint to bending has an effect on bending.
弯曲的摩擦约束力对弯曲有影响。

An instance of bending,warping,or crumpling;a bend or bulge.
弯曲，褶皱;鼓胀

branch是什么意思：
n. 树枝；旁系；支流；分部；分支
v. 分支；出枝；派生
adj. 树枝的；分支的

The acoustics is a branch of physical.
声学是物理学的一个分支。

optimization of branch instruction
转移指令优化

branch or skip on condition
条件转移或跳越 - 指令