This study proposed two different type of block space__ the along-coast-developed and the along-street-developed blocks.

Because the concept of stereotype in UML is not precisely defined,users and researchers often misused this kind of extension mechanism of UML,and modeling tools that support stereotype mechanism can not be well developed by the doctrine in UML.

Background precipitation in the whole world is divided into ocean type, continent type and ocean alternating with continent type.

This paper has made a review on different methods based on microwave and land surface models for monitoring soil moisture, which can be classified as passive microwave method, active microwave method, combined active and passive method, model simulation method, and data assimilation method.

Theory, methods and urgency of establishing the terrestrial stratotype are discussed based on the study of the stratotype candidate of terrestrial Jurassic-Cretaceous boundary, Luanping, northern Hebei Province, compared with "Revised Guidelines" of the ICS and stipulation of the International Stratigraphic Guide.

Each island arc in the Northwest Pacific island arc system is composed ofcontinental crust arc and oceanic crust arc (except for the Mariana island arc).