The upper set of wrench flats belong to the packing nut, which is threaded into the valve body.

扳手面上面的那个属于衬垫螺母，它是通过螺纹旋进阀体的。

youdao

Although I now have lower dentures, I am still waiting on the upper set, and also am missing the end of my tongue, which makes tidy eating impossible.

尽管我已经有了下部的假牙，但我还在等待上部的假牙，以及修复舌头的末端(修复后吃饭才不会显得狼吞虎咽)。

youdao

The way people behave at the workplace is mostly set by the upper levels.

人们在工作场所中的行为方式很大程度上取决于公司高层。

youdao

But Marc Tucker says students who pass the exams could stay in high school and take a demanding set of exams at the upper division level.

VOA: special.2010.02.25

And when I do this test, what I want to do, is say I'm going to pick the middle spot, and depending on the test, if I know it's in the upper half, I'm going to set my start at the mid point and the end stays the same, if it's in the front half I'm going to keep the front the same and I'm going to change the endpoint.

如果我知道目标数可能，再比中值点大的区间里，我可能就会把开始点设为中值点,而尾点不变，如果在小的那个区间里,就保持开始点不变而把尾点设为中值点，你们可以看到这儿的代码,就是这么做的,对不对？它是怎么做的？

麻省理工公开课 - 计算机科学及编程导论课程节选

The findings suggested that the plants' NOx emissions could result in a 35% increase in the number of days when ozone levels exceeded the upper threshold set by the US Environment Protection Agency.

BBC: Invasive plant 'increases ozone pollution'

AAPL- has a nice upper wedge set up.

FORBES: Stocks Flat At Monday's Open But Still Looking Strong

Todd wanted to play up the bootmaker's historic appeal with the upper-crust set to attract style-sensitive social climbers.

FORBES: A Brand Re-Booted