in fact, many of these ideas have been on the drawing board for years as part of nasa’s planetary defense program against large space-based objects that might threaten earth.

事实上，多年以来，这类想法一直是nasa内部所执行的诸多地球防御计划中的一部分，它们的主要研究对象就是那些可能会对地球构成威胁的星体，不过目前还没有发现什么可疑的目标。

we do not deny that many attempts that worked well on the drawing board have had to be postponed or aborted completely due to the possibilities we saw arising from those that remain in darkness.

我们不否认，很多在蓝图层面上运作良好的意图被推延或完全取消了，这是由于我们看到来自黑暗层面的各种可能性的升高。

some already exist in spain and a few more are on the drawing board for nevada and california.

西班牙已建有一些类似的电厂，而美国内华达州和加利福尼亚州则正在规划兴建更多这样的电厂。

however, as an investor, you often encounter companies with a supposedly hot product on the drawing board but with little or no sales.

但是，作为一个投资者，你有时候会遇到一些公司，描述它们生产一种应该很受欢迎的产品，但实际上销售很少或者根本没有销售。

as many as 50 new installations—sizable ones—were already on the drawing board when yarter and his team kicked off the blue insight project.

当yarter和他的团队启动blueinsight项目时，制图板上已经有多达50 个新安装 — 而且是相当大的安装。

in this article, we「ll look at 10 of the most amazing telescopes of our time, including several that are still on the drawing board and promise to reveal images of the big bang itself.

在这一系列的文章中，我们会关注现今最令人称奇的天文望远镜，包括一些正在设计中，有望观测到大爆炸图像的望远镜。

railways and roads will be built that might otherwise have stayed on the drawing board for years.

因为奥运会，铁路、公路将得以修建，否则它们还只能停留在设计师的图纸上。

capp」s methodology for oilsands growth includes projects which are known or on the drawing board but which have not yet been completed.

capp的方法主要针对油砂增长，包括那些已知的或是已经在计划列表上但还未完成的项目。

it is one of an estimated 11 new coal schemes planned in poland, while 28 more are on the drawing board in germany, according to the wwf.

世界自然基金会称，这是波兰计划之中的11个新的煤炭项目之一，而在德国另外还有28项在计划之列。

what「s on the drawing board now.

我画板上正在做的设计。

often such projects are kept on the drawing board not by lack of money but by politics and planning.

通常这类项目驻足在计划阶段，不是因为缺乏资金，而是由于政见和规划。

despite their high cost and energy use, some 19 more plants are on the drawing board in the state.

尽管这些工厂的运转需要高成本高能耗，但在加州仍有19个以上的这样的工厂处于设计阶段。

for now, the project remains on the drawing board at architectural firm kobi karp, and there is no shortage of artist」s impressions of the many facets of miapolis.

目前，该项目仍然停留在kobikarp公司的绘图板上，并由不少艺术家继续完善。