英 [eks] 美 [eks]
n. 英语字母中的第二十四个字母；未知的人（数或影响等）；表示罗马数字十；社交媒体公司，前身为推特
X /ɛks/
有变体名词 X is the twenty-fourth letter of the English alphabet. 英语字母表中的第24个字母
卤原子(halogen atom)的符号
电抗(reactance)的符号
电抗的符号
交换机
电抗
x射线，伦琴射线，x辐射
锡石砂
y坐标
Let x be the sum of a and b.
设x为a加b之和。
X denotes those not voting.
X表示那些没有投票的。
Let's suppose X knows what Y is doing.
假设X知道Y正在干什么。
"One of the really frustrating things for patients with fibromyalgia is that there's nothing to measure in labs or in X-rays.
VOA : special.2011.08.02
For example, F x y z if I have an equation that looks like this, f of x, y, z.
打个比方，我有个这样的方程。
固态化学导论课程节选 : 麻省理工公开课
The highest probability now is going to be along the x-axis, so that means we're going to have a positive wave function every place where x is positive.
概率最高的地方是沿着ｘ轴，这意味着只要在ｘ,大于零的地方波函数都是正的。
化学原理课程节选 : 麻省理工公开课
The Edison2 is an experimental car that was one of the winners of the ten-million-dollar Progressive Insurance Automotive X Prize.
VOA : special.2010.11.17
It carried the man who became the first human to step on the moon, Neil Armstrong, a former X-15 pilot.
VOA : special.2010.07.07
This round-up of Monday's main media stories focuses on the return of X Factor.
The shoulder itself was examined, X-rayed, patted, poked, palpated, massaged, and manipulated in countless ways.
Sleuthing for a Syndrome X gene is in its very early stages, with no successes yet.