obstruction approach marking接近: be close to; near; approach障碍物: obstacle; obstruction; obstr ...的: 4次方是 The fourth power of 2 i ...告示: official notice; bulletin; p ...近障碍物线: approach to obstructions下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:接近障碍物的告示，即可在微信中查询翻译
