外螺纹制造法 threading

    外弯边 convex edge

    外观 appearance

    失真 distortion

    尼龙；聚醯胺 nylon; polyamide (PA)

    尼龙墨水针笔 technical felt-tip pen

    左右调校杆 lateral adjusting level

    市售尺寸；标准尺寸 stock size

    市电频率；电源频率 mains frequency

    平(木)锉 flat rasp

    平水尺；水平仪 spirit level

    平行投影 parallel projection

    平行车削 parallel turning

    平行虎钳 parallel vice

    平行钉法 parallel nailing

    平底弯刨 flat faced spokeshave

    平底钻嘴 forstner bit

    平板结构 slab construction

    平流扼流圈；滤波扼流器 smoothing choke

    平流电容器；滤波电容器 smoothing capacitor

    平流电路；滤汳电路 smoothing circuit

    平面板；正台 surface plate

    平面图；俯视图 plan

    平面锤 flatter

    平移 translation

    平搭榫 corner halving joint

    平嘴钳 flat nose pliers

    平槽刨 router plane

    平衡 balance; equilibrium

    平衡力 equilibrant

    平衡条件 equilibrium condition

    平衡电桥 balanced bridge

    平头弧刀 square nose gouge

    幼纹 smooth cut

    打凹成形 hollowing

    打凸成形 raising

    打槽机 routing machine

    打线；打槽 routing

    打磨 fitting; polishing

    打磨机 polisher

    本生灯 Bunsen burner
本征半导体 intrinsic semiconductor

    正反器；触发器；复振器 flip-flop

    正反馈；正回输 positive feedback

    正火 normalizing

    正向偏置 forward bias

    正投影 orthographic projection

    正投影图 orthographic drawing

    正弦波形 sinusoidal waveform

    正面投影 front projection

    正视图 elevation; front elevation

    正极；阳极 anode

    正齿轮 spur gear