左环 meaning in English

left loop
neck pommel

Theorem 3 . 6 s is a direct product of an additive left normal d - idempotent semiring and a ring , if and only if 5 is a pseudo - strong lattice idempotent semiring of left rings
定理3 6s是加法左正规d一幂等半环和环的直积，当且仅当s是左环的伪强半格幂等半环
Theorem 2 . 2 . 7 s is a direct product of an additive normal c - idempotent semiring and a ring , if and only if 5 " is a pseudo - strong right normal idempotent semiring of left rings
7s是加法正规c一幂等半环和环的直积，当且仅当s是左环的伪强右正规幂等半环定理3
Theorem 1 . 2 . 9 s is a direct product of a normal a - idempotent semiring and a commutative ring with an identity 1 , if and only if s is a strong right normal idempotent semiring of a - left rings
Gs是正规人一幂等半环和含么交换环的直积，当且仅当s是a一左环的强右正规幂等半环
According to the number and relative position of " core points " and " delta points " extracted from the fingerprint image , we classify the fingerprint into the following six classes : arch , tented arch , left loop , right loop , whorl , twin loop
通过提取出的指纹图像中“核心点”和“三角点”的数目和相对位置，我们将指纹图像分成了六种类型:拱型，尖拱型，左环型，右环型，涡型，双环型。