All kinds of structural adhesives emerged subsequently such as carbon fiber adhesive, anchor adhesive, slotfilling adhesive and so on met the various needs in the field of civil engineering.
随后，国内涌现出各种各样的建筑结构胶如碳纤维胶、锚固胶、灌缝胶等满足了土木工程领域不同方面的需要。
2
Smaller double-row angular contact ball bearings do not have a fillingslot (Figure 1.15a and b) so that they can be axially loaded from both sides.
较小的双列角接触球轴承没有填充槽(图1.15 a和b)，使他们可以从双方的轴向加载。
3
Larger double-row angular contact ball bearings have a fillingslot (Figure 1.15c and) on one side and a machined brass cage or a pressed sheet-steel waved-ribbon cage per ball set.