Serigraph The College of Agriculture bought a serigraph from the States to improve silk knitting techniques.

为研究及改良丝织技术，岭南大学农学国引进生丝复式强伸力机。

We import raw silk.

我们进口生丝。

The sensitivity of denierer cannot be impr-oved but the shim thickness of it ensures the minimum size of strand silk be tangent to with both sides of gauges.

感知器垫片厚薄必须保证生丝细限纤时的丝条恰好与两边隔距片相切,才能提高感知器的灵敏。