In the cold starting phase, because of the lower air temperature, the worse fuel atomization, and the catalyst temperature being below initiation temperature, HC and co emissions are high.
发动机在冷起动阶段由于空气温度低、燃油雾化不好、催化剂未能达到起燃温度，因而hc和CO污染严重。
Ohmic heating technology has been widely used and some new ohmic heating apparatus are being developed in USA, Japan, UK and other countries. But in our country, it is only in the starting phase.
通电加热技术在美国、英国和日本正处于推广应用以及新型设备的开发研究阶段，在我国只处于起步阶段，国内也尚未引进食品的通电加热设备。
Ohmic heating technology has been widely used and some new ohmic heating apparatus are being developed in USA, Japan, UK and other countries. But in our country, it is only in the starting phase.
通电加热技术在美国、英国和日本正处于推广应用以及新型设备的开发研究阶段，在我国只处于起步阶段，国内也尚未引进食品的通电加热设备。
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