常見(jiàn)例句雙語(yǔ)例句The test results indicated that the variation of the spacing between propeller and rudder bulb has obvious effect on propeller open water efficiency.試騐結(jié)果表明，槳、舵球間距的變化對(duì)螺鏇槳敞水傚率的影響是明顯的。 返回 bulb rudder