low-density lipoprotein, LDL (低密度的脂蛋白)
When the density of water is 1000,i.e.in fresh water and in summer zone a ship may load to the upper edge of the line marked().
density gradient centrifugation密度梯度离心
A current will develop between areas of different density in ocean waters. If you face in the same direction the current is flowing,the water of().
When is the density of the water required to be logged in the logbook of a ship?()
One of the causes of ocean currents is density differences in the water. This is true because ().
“This increase in charge air density is accomplished on most modern diesel engine types by use of exhaust gas turbo-charging, in which a turbine wheel driven by exhaust from the engine is rigidly coupled to a centrifugal type air compressor” According to this sentence, we can know that increases density(), drives the compressor directly()
When your vessel is proceeding to the area of traffic density,()is used to determine the exact ranges of other ships or objects in the vicinity.
If oil density were greater than water’s, the oil separator ().
If oil density were greater than water’s, the oil separator ().