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1·The mobility test part comprises a sprue gate, a melting liquid cavity and an exhaust hole.

流动性试验部件包括浇注口、熔液腔和排气孔。

2·Buy some copper screen and cut out pieces to go over all vent openings and the fan exhaust hole.

购买一些编织铜网，割成片状，包裹所有的机箱开口和散热风扇孔。

3·An intake hole and an exhaust hole are formed through the outer surface of the exhaust channel unit.

进气孔和排气孔穿过排气通道单元的外表面而形成。

4·The flow through the exhaust hole and maze was relatively small, and the effect on the static holding flow was also small.

排气孔流量和迷宫流量所占的份额很小，其对步进缸静态保持流量的影响也很小；

5·The change of back-flow pressure, deformed exhaust hole, pre-inflow structure and so on can be adopted to reduce back-flow impact.

根据回流压力的变化规律，采取异型排气口、预进气结构等措施减小回流冲击。

6·When the compression stroke is finished, the longitudinal pressure relief grooves are communicated with the air exhaust hole to release the high pressure.

当压缩行程完成时纵向泄压凹槽与排气孔相通，实现高压被释放的目的。

7·As the piston moves up it is compressed, the spark plug ignites combustion, and exhaust exits through another hole in the cylinder.

当活塞上行压缩气缸中的混合气体，火花塞点燃气体燃烧，通过气缸上另一个孔排气。

8·After finishing the mould, we can design the pour system of mould, the trough of exhaust and overflow and localization hole, etc.

模具设计完成后，设计模具的浇注系统、排气槽、溢流槽以及定位孔等。

9·Working medium inlet and exhaust non-return valves balance hole for Stirling engine is introduced.

对热气机工质进排气单向阀平衡孔作了简介。

10·Optional equipment: hot-melt coder, inwrap (nitrogen) device, packing bags hanging hole devices, packaging films perforated exhaust.

可选装置：热熔打码机、充气（氮气）装置、包装袋挂孔装置、包装膜打孔排气装置。