查询词典 skim through

Three hundred years ago when Peter Pond came through, he said on the banks of the Athabasca and clear water rivers, the local Indians, the Crees, would take these bitumen sands and put them in a pot of water and skim the bitumen off the top, and they'd mix it with pitch and they'd use that to fix their canoes.

三百年前，彼得庞德来到这里时，他站在阿萨巴斯卡河岸边，对着清澈的河流说到：本地的印第安人，克里人，会把这些沥青砂放进一个水罐里，刮出最上层的沥青，然后把它们与焦油混合，用来修理他们的独木舟。

You can of course, skim right through the lessons (and do a complete review of each with flashcube), but you are only being asked to focus on the following parts.

你当然可以快速浏览课程（并利用'回旋闪光灯'对每一课做完整的复习），但你只需要对以下的部分重点研读。

With fresh full-cream milk made from whole milk powder, said; to full-fat or part skim milk made from skimmed milk powder, said; raw milk by special technology management to improve milk prepared and nature, so that, when dissolved in water to recover quickly prepared and, without floating or sinking, said agglomeration of instant milk powder; fresh milk through a series of processing and adding lactose, whey powder, amino acids, vegetable oil , vitamins and other nutrients to be adjusted to close to human milk composition made of said composition of breast milk; there is milk sugar, modulation milk powder, whey powder, dairy milk powder, ice cream powder.

以新鲜全脂乳制成的称全脂奶粉；以全脱脂或部分脱脂乳制成的称脱脂奶粉；原料乳经特殊工艺处理以改善奶粉的冲调性，使之在用水冲调复原时溶解很快、无结块上浮或下沉的称速溶奶粉；鲜牛乳经一系列处理并添加乳糖、乳清粉、氨基酸、植物油、维生素等营养物质，使其成分调整至接近人乳成分而制成的称母乳化奶粉；还有加糖奶粉、调制奶粉、乳清粉、酪乳粉、冰淇淋粉等。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。