pipe knee

基本解释

The inner mold support of a knee pipe is composed of the semi-circular arc-shaped support frames and a bivariate arc pad mold.
弯管内模支撑由半圆弧形支撑架与双变弧垫模组成。
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You can picture Jackson with a young son atop his knee, corn cob pipe in one hand and a copy of The Brothers Karamazov in the other.
你想象下这样的场面：禅师的幼儿坐在他大腿上，一只手拿着玉米棒，而另一手拿着一本《手足之情》。
The smell for of pipe tobacco always takes me back to the time I used to sit on my grandfather's knee.
烟斗烟丝的气味总让我回想起我过去坐的祖父膝盖上的那些日了。