Beforehand to research the characters, preparation technology, manufacture equipment and test methods of slush hydrogen will be helpful to future research on slush hydrogen in China.
进行浆氢的特性、制备工艺、生产装置及浆氢的测量技术等相关研究工作，对未来中国开展浆氢的研究具有借鉴意义。
It gave a research result on the manufacture technology of arch tube truss, and put forward firstly the instability hoisting technology of single truss.
探索出圆拱形管桁架的分段制作、现场拼接技术，首次开发了单榀桁架非稳定性吊装技术。
At the present, the key technology of the axial variable displacement piston pump is grasped by the foreign companies, the research and manufacture level in our country are on the elementary stage.
目前，轴向变量柱塞泵的关键技术掌握在国外公司手中，国内的研究、生产、制造均还处于初级阶段。
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