video
Thư viện
Tài trợ
"Skin friction" nghĩa là gì?
13 Mar, 2016
Nhớ dùng chất bôi trơn để giảm ma sát*. Photo courtesy Anais Gómez-C.
'Skin friction' nghĩa là ma sát mặt ngoài, ma sát bề mặt (friction between a fluid and the surface of a solid moving through it or between a moving fluid and its enclosing surface; the part of the drag of an airplane or of the head resistance of a ship due to the friction of air or of air and water).
Ví dụ
Here surface textures are applied to reduce skin friction and to create silky soft surfaces.
XLAB’s aero bag product line includes numerous design features. All bags are made out of a low skin friction woven material and a non-slip bottom, gripping the top tube.
For positioning, you may also place your legs straight, close together and parallel instead of widely apart while you are in the “missionary” (tư thế truyền giáo) or side-lying position. Last, use just enough water-based (rather than an oil- or silicone-based) lubricant (chất bôi trơn) to facilitate comfortable entry, but not so much that it eliminates pleasurable skin-against-skin friction.
Phạm Hạnh
Bài trước: "Skin food" nghĩa là gì?
* into the night... i want to make you mine
Tags: word
Post a Comment