穿越热带从林的长途旅行充满了危险。
Thedlong journey through the tropical forest was fraught with danger.
如果你穿越热带雨林，你会看到很多美丽的植物。
If you walk through the rainforest, you will see many beautiful plants.
艾治汪惊奇地发现，燕鸥经常在北大西洋可以停留近一个月。 他推测燕鸥可能在这段时间捕捉一些鱼类和小型的甲壳类海洋生物，能量得到充足补充后再动身穿越热带地区。
Egevang was surprised to find that the birds often stop for a month in the open North Atlantic Ocean, probably to "fuel up" on fish and small crustaceans before setting off to cross the tropics.
此外巴西上层热带雨林被认为从穿越了大西洋的撒哈拉沙尘获得了大部分养分供应。
In addition, the upper layers of the rainforest in Brazil are thought to derive much of their nutrient supply from dust transported across the Atlantic from the Sahara.
你将会在所有的状况下进行航行，这些状况包括温暖的信风，冬季的暴风雨，热带的赤道无风带，两次穿越赤道以及国际日期变更线。
You will have sailed in all conditions from warm trade winds, through winter storms, tropical heat of the Doldrums, crossing the Equator twice and the International Date Line.
结果表明，采用这两种定义下的对流层顶时，穿越对流层顶的质量和臭氧通量都表现出在热带纬度带为TST通量， 到了副热带则转换为STT通量。
The results show that when the two kinds of tropopause are used, the mass and ozone fluxes cross tropopause in tropical latitudes are TST flux areas, and convers to the STT flux in the sub\|tropics.
结果表明，采用这两种定义下的对流层顶时，穿越对流层顶的质量和臭氧通量都表现出在热带纬度带为TST通量， 到了副热带则转换为STT通量。
The results show that when the two kinds of tropopause are used, the mass and ozone fluxes cross tropopause in tropical latitudes are TST flux areas, and convers to the STT flux in the sub\|tropics.
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