A point gate was used for feeding in the injection mould for the transparent plastic box lid.
透明塑料盒盖注射模采用点浇口进料，脱模机构采用推板推出时，增设引气辅助推出机构，可确保制件顺利脱模。
Length, feeding point, and orientation of the antenna in the waveguide are all arbitrary.
天线的长度、馈电点和取向都是任意的。
The one-dimensional Fresnel zone phase correcting principle can be applied in a cylindrical surface to constructed a new type of point source feeding lens antenna.
在圆柱面上进行一维菲涅尔区相位修正结构设计，可以构成一类新型的点源馈电透镜天线。
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