A variety of systems have been suggested for the production of unconventional foods, primarily protein . 人们曾提出各种不同的系统来生产以蛋白质为主的非传统食物。
A positive stimulus to city growth was required transform the predominantly agricultural nature of the area's economy . 改变以农业为主的地区经济是促进城市发展的一个积极刺激。
He had risen to leadership of a party still essentially upper-class in its orientation if no longer in its composition . 他领导的党从方针上（如果不再从成分上）说的是以上等阶层为主的。
A vivid pictorial report followed by less exciting material allows the viewer to reflect on information that has just flashed by . 一项以画面为主的生动报道继之以不那么激动人心的材料能使观众回味一下刚才一闪而过的消息。
In small-scale farming, on the other hand, the principal object is subsistence. production is diversified among field crops and animal products . 另一方面，小规模的农场以维持生活为主要目的，生产有大田作物和畜产品之分。
Whatever the wavelength of the radiation we study, we are still looking principally for those telltale emission and absorption . 不论我们研究的辐射具有什么样的波长，我们始终以那些泄露天机的发射线与吸收线为主要寻找对象。
A study of the chinese lexical education in japanese 以中日同形词为主要研究对象
Live on rice is most of the asians ' manners 以米饭为主食是大多数亚洲人的习惯。
Malaysian producer of palm oil and palm oil products -生产及销售邦恒茶油为主。
Most of them will be used in the electronic field 消费领域仍以电子电气等为主。
