与第三类产品环境宣告 Environmental Product Declarations Type III
的三类产品家族 Foundation & Tools
三A类激光产品 class 3A laser product
三B类激光产品 class 3B laser product
三大类产品 Three Major Products
然而这三类产品只代表了整个绿色建筑材料市场的一小部分。
These three categories, however, represent small shares of the market.
该方案是基于能效条例而提出的，其第一阶段覆盖了三类产品。
The scheme was introduced under the Energy Efficiency Ordinance. The initial phase of the scheme covers above three categories of products.
他说：“如果有这样一种第三类产品，那么它在这些方面的功能就应该更先进。”
"If there's going to be a third category of device, it's going to have to be better at these kinds of tasks," he said.
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