x-x

The possible permutations of x, y and z are xyz, xzy, yxz, yzx, zxy and zyx.

x、y和z的可能的组合方式为xyz、xzy、yxz、yzx、zxy和zyx。

He definitely wants to perform further tests, such as a biopsy and some x-rays.

他肯定很想做进一步的检查，如活组织检查和X光片等。

Let x equal 5 and y equal 3.

设x等于5，y等于3。

Let x be the equal of y.

设x等于y。

The conservatory measures approximately 13ft x 16ft.

温室的大小大约是13英尺乘16英尺。

The airline had been screening baggage on X-ray machines.

该航空公司已采用X光机对行李进行安全检查。

All hand baggage would be x-rayed

所有的手提行李都要接受X光检查。

Two perpendicular lines are chosen as the x and y coordinate axes.

选两条垂线作为x和y坐标轴.

You can only make X amount of dollars a year.

你一年只能赚那么多钱。

It will only register on sophisticated X-ray equipment

只有精密的X射线仪器才能显示出来。

Build X X into a China best Tourism City.

XX市人民争创优秀旅游城市.

The Seller will issue 2 % Performance Bond of total value USD X X to Buyer's Bank.

卖方须开出总合同金额2%的履约保函给买方银行.