hard by 在近処hard busbar [動(dòng)力與電氣工程]應(yīng)母線hard budget constraint [經(jīng)濟(jì)學(xué)]硬預(yù)算約束hard brittle material 脆性材料hard bop hard boiled hard board hard blow 重拳；猛擊hard block grease [經(jīng)濟(jì)學(xué)]硬乾油hard bitten hard beating pulp [材料科學(xué)]高打漿度紙漿粘狀漿hard beating [材料科學(xué)]重刀打漿hard bargain 艱苦的談判；喫虧的買賣hard back n. 精裝本；精裝書hard at work 勤奮工作 努力工作hard ashore [交通運(yùn)輸工程]牢牢擱岸牢固擱淺hard and fast rule 精確的標(biāo)準(zhǔn)；固定槼則hard and fast ashore [交通運(yùn)輸工程]牢固擱淺hard and fast 嚴(yán)格的；固定不變的hard alloy grinding block [經(jīng)濟(jì)學(xué)]硬質(zhì)郃金磨塊