拖船擦着我们的船尾开了过去,距离不到50码。The tug crossed our stern not fifty yards away.那只拖船正拖着三只驳船.The tug is towing three barges.拖船小心地驶入狭窄的码头停泊处.The tug eased into the narrow docking space....
上述提到的产品都属于石油蒸馏物.All of the above - mentioned products fall under the category of Petroleum Distillates.这使得蒸馏物中 A:B 比率发生缓慢的变化.This results in a slowly changing ratio A : B in the distillate....