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- The primary distillation of petroleum at atmospheric pressure for the purpose of obtaining petrol/gasoline, kerosene, gas oil, and heavier products. 在常压下进行的石油一次蒸馏，其目的是要得到汽油、煤油、柴油和更重产品。
- By means of analog calculation on wash oil distillation system, the main process design parameters of primary distillation column and rectification column are defined. 通过对洗油蒸馏装置的模拟计算,确定了初馏塔和精馏塔的主要工艺设计参数。
- This article describes the simulative calculation and optimization of the combined guide floating valve tray in the design of primary distillation tower and rectification tower of chlorobenzene plant. 主要介绍了组合导向浮阀在氯化苯装置初、精馏塔设计中的模拟计算和优化。
- primary distillation of crude oil 原油初馏
- The disease is still in its primary stage. 这疾病仍然在初发阶段。
- Experiment on Lowing Naphthalene Content in Phenol Oil from Primary Distillation Column of Technical Naphthalene 降低工业萘初馏塔酚油含萘量的试验
- The little boy left primary school at eleven. 这个小男孩十一岁时小学毕业。
- Sure. We are friends since primary school. 当然，我们从小学就是朋友了。
- I started primary school when I was 5 years old. 我五岁时开始读小学。
- A primary cause of Tom's failure is his laziness. 懒惰是汤姆失败的主要原因之一。
- Primary school teachers use a lot of visual aids. 小学教师使用大量的视觉教具。
- Love and hatred are primary emotions. 爱和恨是基本的情感。
- The Democratic primary was held this month. 民主党候选人初选於本月举行。
- Primary education comes under the umbrella of local government. 小学教育受地方政府的保护。
- He only accepted the primary education off and on in his childhood. 他小时候只断断续续地接受过初等教育。
- The primary reason for advertising is to sell more goods. 做广告的根本目的是要多出售货物。
- Collins was nosed out by his opponent in the primary. 柯林斯在初选中就被他的对手击败了。
- Not derived from something else; primary or basic. 基本的不是从它物派生的; 原本的或基本的
- We lost the New Hampshire primary. 我们在新罕布夏州的初选失利了。
- primary distillation 初级蒸馏
