Try a variety of materials to extract the oils. They will not always smell the same after extraction as before, as some oils are easier to distil this way.
尝试一下用各种材料来提炼精油。它们提炼后的气味经常与提炼之前不同，并且有一些精油更容易用这种方法提炼。
Choose a lip balm with natural oils (but without any salicylic acid), and spread it all the way to the corners and rim, where cracking occurs.
选择含有天然油脂(不含水杨酸)的润唇膏涂抹最容易干裂的嘴唇边缘和嘴角部位。
If rumen activities are so crucial, then energy supplements via oils & fats will have to be modified in a way that it by-passes the rumen before it could be absorbed.
如果瘤胃的活性是如此的重要，那么通过油和脂补充能量将不得不加以改进，使其在被吸收前通过瘤胃。
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