We can still extract oil from the tar sands of Canada.

我们仍可从加拿大的含油沙中提炼。

The toxin it produces, ricin, is a protein found in the castor bean, but the poison itself is made from the mash that's left over after grinding the beans into oil.

素是一种蛋白质，存在该植物的含油种子内，可在榨油后留下的豆渣里加以提炼。

The same varieties of the cabbage do not yield abundant and nutritious foliage and a copious supply of oil-bearing seeds.

相同品种的卷心菜产生丰富而有营养的叶子和大的含油种子。

40.What should you periodically do for the air reservoir?

你应该定期对空气储罐做什么？我们应该排放含油的水。

This reduces the overall oil content of the dish without compromising taste or texture.

这降低菜肴的整体含油， 而响味道或质地。

Ancestral cabbage plants, possibly grown originally for their oily seeds, underwent even greater diversification as they became variously selected for leaves (modern cabbage and kale), stems (kohlrabi), buds (brussels sprouts), or flower shoots (cauliflower and broccoli).

古老的卷心菜植物最初可能是为了获得含油种子而种植的，后来随着它们对叶子（现代卷心菜和羽衣甘蓝）、茎（大头菜）、芽（球芽甘蓝）或花芽（花椰菜和西兰花）的同选择，经历了更大的多样化。

Two of them, sunflower and sumpweed, were also high in oil (45–47 percent).

其中两种植物——向日葵和甘草——的含油也很高（45-47%）。

It is a record of every operation concerning oil or oily water. It is an important oil pollution prevention document for recording oil operation.

它是关于油或含油污水的每一项操作的记录。它是记录油类操作的重要防油污染文件。