Three groups discriminated by risk attitude are Risk averter, Risk balancer and Risk lover.

以态度场，得到避型、平衡型及爱好型三族群。

Newly developed semi automatic grinding wheel balancer for precise grinder detects unbalance vibrative signal by digital phase sensitive detection technique.

介新研制成功的精密磨床砂轮半自动平衡仪。

Risk averter prefers bank deposit and insurance, Risk lover prefers foreign exchange and stock and Risk balancer prefers futures.

而避型较偏好银行存款和保，爱好型较偏好外汇和股票，平衡型偏好期货。