Arbors grow fast with good stem shape and good timber.

乔木的干形好、材质优良、较速生。

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Attempts to grow replacement bone by placing stem cells in a culture chamber of the desired shape have not been very successful, with the cells often dying or producing only weak bone.

以前通过将干细胞置于特定性状的培养腔内，以培育出再造骨骼的尝试并不太成功，细胞往往会死亡，或者仅培育出很脆弱的骨骼。

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Fourth, secondary plastering, and then wait for the percent 60 stem degrees according to shape a good scratch, finishes the basement, and according to your requirements of outside layer approach.

第四、做二次抹灰，然后待其百分之60干度时根据造型刮好，作好基底，及根据你要求的外面层做法做。

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She knows that pursuing STEM studies is a win-win situation: students prepare themselves for exciting future careers and NASA helps shape the scientists, engineers and explorers of tomorrow.

FORBES: NASA, Got Space Exploration? Get Goals, Get Funding and Get Uhura.