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The Tawhid and Jihad group sent Al-Jazeera a video showing the two unidentified Bulgarians sitting with their hands cuffed, flanked by three masked men, two carrying rifles and one carrying a rocket propelled grenade launcher. 该录像带显示，两名保加利亚人质双手被绑，坐在三蒙面绑架者前，其中两名绑架者手持步枪，另一人手持火箭发射器。
The company's full product line includes manual propelled hand pallet trucks, stackers, sit-down and stand-up counter balanced trucks, narrow-aisle reach trucks, very narrow-aisle turret trucks, and order picking equipment. 公司的产品包括手动叉车和堆高车、式和站式升降式叉车、通道货物叉车以及高货位叉车。
A rocket propellant consisting of a single substance or mixture that contains both fuel and oxidizer. 单元推进剂一种含有单一物质或燃料和氧化剂混合物的火箭推进剂
This thesis conducts a PLC-controlled automatic washing system for the rocket propellant stirrer tank. 基于PLC的火箭推进剂搅拌罐清洗系统。
A colorless, oily liquid, CH3NO2, used in making dyes and resins, in organic synthesis, and as a rocket propellant. 硝基甲烷一种无色的、油质液体CH3NO2，用来制造染料和合成树脂，用于有机合成，以及作为火箭助推剂
A two - component rocket propellant,such as liquid hydrogen and liquid oxygen,fed separately to the combustion chamber as fuel and oxidizer. 二元燃料一种二元火箭燃料，如液氢和液氧，作为燃料和氧化剂分别加入燃烧仓
A two-component rocket propellant, such as liquid hydrogen and liquid oxygen, fed separately to the combustion chamber as fuel and oxidizer. 二元燃料一种二元火箭燃料，如液氢和液氧，作为燃料和氧化剂分别加入燃烧仓
Abstract: To review the progress in the major ass ignment, the organization and implementation of protection against liquid rocket propellent. 文摘:综述了发射大型运载火箭推进剂作业卫勤保障主要任务、保障重点、卫勤力量的分配、卫勤保障的组织和实施进展。
Abstract ：To review the progress in the major ass ignment, the organization and implementation of protection against liquid rocket propellent. 摘要：综述了发射大型运载火箭推进剂作业卫勤保障主要任务、保障重点、卫勤力量的分配、卫勤保障的组织和实施进展。
To review the progress in the major ass ignment, the organization and implementation of protection against liquid rocket propellent. 综述了发射大型运载火箭推进剂作业卫勤保障主要任务、保障重点、卫勤力量的分配、卫勤保障的组织和实施进展。
An experimental test apparatus and procedure for measuring erosive burning rates of solid rocket propellant is described in the present paper. 该文描述了一种固体火箭推进剂侵蚀燃烧的测试方法。
His sooty hand smudged the paper. 他被煤烟熏污的手把纸弄脏了。
Our pilotless rocket enters the track of the earth. 我们把一个无人驾驶的火箭送入了地球的轨道里。
The pattern of liquid rocket propellant seep and steam diffusion is discussed in this paper, and the model of quantitative analysis is also established. 讨论了航天发射场液体推进剂泄漏及蒸汽逸散的模式,并建立了定量分析模型。
Chemical rockets create their exhaust by the combustion of rocket propellant. 化学火箭由火箭燃烧推进燃料所产生气体推进。
A small open railroad car propelled by a hand pump or a small motor. 手泵式四轮小车由一个小马达或一台手泵驱动的小型无篷路轨车
The children walk down the street hand in hand. 孩子们手拉手地在街上散步。
The teacher asked the pupil to put his hand down. 老师叫这个小学生把手放下。
She picked up a new magazine with her free hand. 她用空着的一只手拿起一本新杂志。
My father is a dab hand at baking bread. 做面包是我父亲的拿手好戏。