preparation process造句怎么写

The preparation of chitin from cicada was discussed emphatically. The preparation process, decolor conditions, the concentration and dosage of the acid and alkali were studied.

Experiment results shows that the preparation process is exothermic reaction, and infrared results indicates that lithium grease has been synthesized.

Chemical and physical properties of fluorine and its safety, storage and shipment, preparation process are introduced, some valuable derivatives of fluorine and their applications are also discussed.

In this paper, the preparation process of thermosetting resin composite materials from ramie noil fiber,hot press felt and non woven fabrics were introduced.

OBJECTIVE: To optimizate the preparation process of Yuganning patch.

Durning study on preparation process of herbicide-nonwoven, a drip-permeance technology has been developed.

The present invention relates to indole carbazole alkaloid and its preparation process and use.

The management model of Sunjiagou Coal Preparation Plant, Shendong Coal Co. , Shenhua Group is introduced mainly. Coal preparation process possesses higher automation level.

The present invention relates to one kind of FET with vertical channel structure and its preparation process.

The temperature control, the viscosity controal and the effect of catalyst in the preparation process of vegetable-oil-based resin have been studied in this paper.

Objective To establish the preparation process and method of quality control of metronidazole oral pellicles.

The present invention relates to one kind of FET with polysilicon source and vertical channel structure and its preparation process.

The present invention relates to the preparation process of dry vibrating material for middle ladle.

The new preparation process of tetrabromobisphenol - a with bisphenol - a, bromine and hydrogen peroxide as raw materials by a heterogeneous catalyst reaction has been introduced in this paper.

The present invention discloses one kind of mortar powder for building and its preparation process.