因為裂痕微小加上表層覆蓋黑膠，所以裂紋不明顯，導致檢驗人員無法有效攔截

因為裂痕微小加上表層覆蓋黑膠，所以裂紋不明顯，導致檢驗人員無法有效攔截

結果 (英文) 1:

Because the cracks are tiny and the surface is covered with vinyl, the cracks are not obvious, which prevents the inspectors from effectively intercepting them.

結果 (英文) 2:

Because the crack is small and the surface is covered with black glue, the crack is not obvious, so the inspectors cannot effectively intercept it

結果 (英文) 3:

Because the crack is tiny and the surface layer is covered with black glue, the crack is not obvious, which makes the inspectors unable to intercept it effectively.