回声测深

echo-sounding device

回声测深仪

echo Doppler indicator回声多普勒指示器 | echo sounding device回声测深仪 | echo-ranging sonar回声测距声呐

echo-sounding instrument

回声测深仪

echo-sounding device 回声侧深仪 | echo-sounding instrument 回声测深仪 | echo-sounding receiver 回声测深接收机

echo-sounding receiver

回声测深接收机

echo-sounding instrument 回声测深仪 | echo-sounding receiver 回声测深接收机 | echo-sounding 回声探测

echo-sounding apparatus

回声测深仪

echo sounding 回声探测=>音響測深 | echo sounding apparatus 回声测深仪 | echo sourding 回声测深

echo sounder

回声测深仪

水深测量目前多以回声测深仪(echo sounder)为之. 回声测深仪主要构造分两大部分:一为记录器,另一为换能器(transducer,俗称音鼓). 记录器内部装置有发射器与接收器两部分. 发射器接收记录器送出的信号,随即产生一种电能波率,

up-and-down fathometer

回声测深兼测冰仪

up-and-down fall 舱口吊货索 | up-and-down fathometer 回声测深兼测冰仪 | up-bound vessel 上行船

echo sounding machine

回声测深机

有效滑流比 effective slip ratio | 回声测深机 echo sounding machine | 回声测深仪 echo sounder

echo sounding machine

回声测深仪

echo sounder 回声测深仪 | echo sounding machine 回声测深仪 | echo suppressor 回波抑制器

depth sounding

回声测深的

depth-sounding sonar 测深声纳 | depth-sounding 回声测深的 | depth-span ratio of beam 梁高跨比

ultrasonic echo sounder

超声波回声测深仪,超声回波测深仪,超声回声测深器

ultrasonic echo gram ==> 超声波回声图 | ultrasonic echo sounder ==> 超声波回声测深仪,超声回波测深仪,超声回声测深器 | ultrasonic echo sounding ==> 超声测深法

Jaycee：房祖名

房祖名(Jaycee)投资六位数字代理薄荷糖,前晚於中环某酒吧举行庆祝派对,成龙大哥现身撑爱子场,引起一阵混乱,可惜成龙大哥一到场即急步进场,之后又走后门离去,整晚显得十分低调.

basement complex：基盘岩群;基盘杂岩

"基盘","basement" | "基盘岩群;基盘杂岩","basement complex" | "基盘岩石","basement rock"