常見例句雙語例句The utility model has the advantages of simple structure, usableness and capability of continuously adjusting the height of the bunk bed.本實(shí)用新型的優(yōu)點(diǎn)：結(jié)搆簡(jiǎn)單，使用方便，可以連續(xù)調(diào)節(jié)高低牀的高度。ip.comThe utility model availing circulation of the backwater interior the product to lubricate the piston device has the advantages of usableness, long life, and low manufacturing cost or the like.本實(shí)用新型利用産品內(nèi)部廻水循環(huán)來潤(rùn)滑活塞裝置，具有使用方便，壽命長(zhǎng)，造價(jià)低等優(yōu)點(diǎn)。ip.com 返回 usableness