As an additioner in silane coupling agent, the functional monomer of 4-META can not help the bonding between porcelain and composite resin.
粘结单体4一META作为陶瓷偶联剂的添加成分，对瓷和树脂的粘结无帮助。
2
A sample hierarchical representation of the RUP meta-model is shown in Table 4 below.
rup元模型的一个分级表示法的例子如下面的表4所示。
3
PVFS sends a request to the meta-data server (steps 1 and 2 in Figure 4), which informs the requesting node about the location of the file among the various I/O nodes.