I don't like studs. You have to make a very wide groove.

我不太喜欢倒勾，因为你必须在指板上挖较宽的沟。

youdao

Single row deep groove ball bearings are the most common type of rolling bearing and are used in a wide variety of applications.

单列深沟球轴承是球轴承中最普通的种类，应用及其广泛。

youdao

Deep Groove ball bearings are the most popular of all the ball bearing types because they are available in a wide variety of seal, shield and snap-ring arrangements.

深沟球轴承是所有类型的球轴承最流行的，因为他们是在一个密封，盾牌和管理各种各样的戒指安排可用。

youdao

Using the CMY color model (cyan, magenta and yellow) as its basis, the team was able to produce blues with a groove measuring 170 x 40 nanometers, reds at 60 nanometers wide and yellows at a width of 90 nanometers -- all with reflected sunlight and unaffected by viewing angles.

ENGADGET: Peacock feathers form basis for reflective displays, could bring color to e-readers soon