The company said it is made out of food-grade substances, making it a cleaner product.

该公司表示，它是由食品级物质制成，这使其成为一种更清洁产品。

The inferior ranks of people in the provinces are assessed in the second.

各省中品级较低人， 评定在其次。

In short, it's a food-grade plastic, which is used in making something as simple as milk cartons.

而言之，它是一种食品级塑料，用于制造像牛奶盒这东西。

These four types of ants and their different roles demonstrate the clear social division of labors in an ant colony and the ants' highly social nature.

这四种品级蚂蚁及其不同角色展示了蚁群中明确社会分工和蚂蚁高度社会化本质。

Vethaak recommends not heating plastic containers in the microwave, even if they claim to be food grade, and not leaving plastic water bottles in the sun.

Vethaak 建议不要用微波炉加热塑料容器，即使它是食品级，也不要把塑料水瓶放在阳光下。

The project involved composing brain cell diagrams of the four different types of ants in a colony — worker, male, gyne and queen — by analyzing 900 monomorium pharaonis, also known as pharaoh ants.

该项目包括通过分析 900 只法老蚁（也为法老蚂蚁），绘制一个蚁群中四种不同品级蚂蚁脑细胞图——工蚁（worker）、雄蚁（male）、处女繁殖蚁（gyne）以及蚁后（queen）。

Li Qiye, head of the research project at the BGI Group in Shenzhen, Guangdong Province, explained to the Global Times that such clear social responsibilities within a colony have led each type to have different brain structures.

广东省深圳市华大基因集团研究项目负责人李启业向《环球时报》解释说，一个群体如此明确社会分工导致每种品级都有不同大脑结构。

The real way to do this is to use a food grade lye, but we're doing a work around of baking soda that has been previously baked in the oven at 250 degrees Fahrenheit for an hour.

真正方法是使用食品级碱液，但我正在使用小苏打， 小苏打之前已在烤箱中以 250 华氏度烘烤一小时。

A monarchical government supposes, as we have already observed, pre-eminences and ranks, as likewise a noble descent. Now since it is the nature of honour to aspire to preferments and titles, it is properly placed in this government.

如同我所说，君主政体必须以优越地位、品级，甚至高贵出身为依据。 荣誉 性质要求优惠待遇和高贵品爵。正因为这个缘故，荣誉在这个政体中获得了地位。