The cotyledons of the mature embryo are either green, yellow or chalky yellow.

成熟胚的子叶是绿色，黄色或浅黄色。

youdao

I believe, when comprehensive and mature techniques and complete peripheral facilities are in place, "green" electric cars will become a reality in the not-so-far future.

相信在不久的未来，当技术全面成熟、周围的配套硬件设施齐备以后，我们离绿色电动也就不远了。

youdao

Nuclear power is a kind of green energy resouece. Its technology is very mature and safe now.

核电作为一种清洁能源，技术上已经成熟，安全可靠。

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In the less-mature green chemicals and biofuels industry, Milroy not only wants to own a piece of this incredible growth potential, he wants to lead it.

FORBES: Cunning Capitalists Go Blazing Into Biofuels

Now it has to show that the green shoots springing up so effortlessly can grow into mature businesses.

ECONOMIST: How to remake a city