如果蜗牛壳的螺线方向在8个细胞的阶段被改变了，那么蜗牛的心脏，胃，肝卷绕和肠循环方向都会相应的发生反转。
If the spiral of the shell is changed at the eight-cell stage then the orientation of the snail's heart, stomach, liver coiling and gut looping are similarly flipped.
如果量规（此处应该就是“压力表”）读数过高，将制动螺钉顺螺线方向放松； 如果量规读数过低，则向相反方向调整制动螺钉。
Loosen the clamp screw(s) and move slightly toward the helix if gage is reading high. and away if reading low.
螺线的方向取决于蜗牛妈妈的基因组成。
The orientation of the spiral is determined by the genetic make-up of the snail's mother.
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