Compounds of boron feature in washing powders and cleaning products (" borax" ), antiseptics and water softeners, and also as additives in fibreglass, but such roles are humdrum.

化合物用在洗衣粉和清洁产品(“砂”)、防腐剂和水软化剂中，也可作添加剂的玻璃纤维，但这些作用是单调的。

He improved on what came before by making his gun's central mechanism, or receiver, out of aluminium rather than heavy steel and its stock out of fibreglass.

他对之前的技了改，用铝而不是重钢制造了枪的中央机构或机匣，并用玻璃纤维制造了枪托。